Home / 865,664.20-1,298,496.30-492,416.20

Finding the Fourth Proportional to 865,664.20, 1,298,496.30 and 492,416.20

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Solution

The fourth proportional to 865,664.20, 1,298,496.30 and 492,416.20 is: 738,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,664.20 : 1,298,496.30 = 492,416.20 : x
  2. Step 2: Convert to fraction form
    865,664.20/1,298,496.30 = 492,416.20/x
  3. Step 3: Cross multiply
    865,664.20x = 1,298,496.30 × 492,416.20
  4. Step 4: Simplify right side
    865,664.20x = 639,400,613,760.06
  5. Step 5: Solve for x
    x = 639,400,613,760.06/865,664.20
  6. Step 6: Final answer
    x = 738,624.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.