Home / 555,146.92-766,051.14-340,244.20

Finding the Fourth Proportional to 555,146.92, 766,051.14 and 340,244.20

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Solution

The fourth proportional to 555,146.92, 766,051.14 and 340,244.20 is: 469,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,146.92 : 766,051.14 = 340,244.20 : x
  2. Step 2: Convert to fraction form
    555,146.92/766,051.14 = 340,244.20/x
  3. Step 3: Cross multiply
    555,146.92x = 766,051.14 × 340,244.20
  4. Step 4: Simplify right side
    555,146.92x = 260,644,457,288.39
  5. Step 5: Solve for x
    x = 260,644,457,288.39/555,146.92
  6. Step 6: Final answer
    x = 469,505.36

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.