Home / 684,014.80-1,026,022.20-185,378.80

Finding the Fourth Proportional to 684,014.80, 1,026,022.20 and 185,378.80

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Solution

The fourth proportional to 684,014.80, 1,026,022.20 and 185,378.80 is: 278,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,014.80 : 1,026,022.20 = 185,378.80 : x
  2. Step 2: Convert to fraction form
    684,014.80/1,026,022.20 = 185,378.80/x
  3. Step 3: Cross multiply
    684,014.80x = 1,026,022.20 × 185,378.80
  4. Step 4: Simplify right side
    684,014.80x = 190,202,764,209.36
  5. Step 5: Solve for x
    x = 190,202,764,209.36/684,014.80
  6. Step 6: Final answer
    x = 278,068.20

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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.