Home / 880,145.87-1,214,678.30-492,955.20

Finding the Fourth Proportional to 880,145.87, 1,214,678.30 and 492,955.20

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Solution

The fourth proportional to 880,145.87, 1,214,678.30 and 492,955.20 is: 680,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,145.87 : 1,214,678.30 = 492,955.20 : x
  2. Step 2: Convert to fraction form
    880,145.87/1,214,678.30 = 492,955.20/x
  3. Step 3: Cross multiply
    880,145.87x = 1,214,678.30 × 492,955.20
  4. Step 4: Simplify right side
    880,145.87x = 598,781,981,847.38
  5. Step 5: Solve for x
    x = 598,781,981,847.38/880,145.87
  6. Step 6: Final answer
    x = 680,321.30

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Half scale
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Double scale
Find fourth proportional to 880,146.87, 1,214,679.68 and 492,956.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.