Home / 721,555.20-1,082,706.28-523,510.20

Finding the Fourth Proportional to 721,555.20, 1,082,706.28 and 523,510.20

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Solution

The fourth proportional to 721,555.20, 1,082,706.28 and 523,510.20 is: 785,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,555.20 : 1,082,706.28 = 523,510.20 : x
  2. Step 2: Convert to fraction form
    721,555.20/1,082,706.28 = 523,510.20/x
  3. Step 3: Cross multiply
    721,555.20x = 1,082,706.28 × 523,510.20
  4. Step 4: Simplify right side
    721,555.20x = 566,807,781,184.06
  5. Step 5: Solve for x
    x = 566,807,781,184.06/721,555.20
  6. Step 6: Final answer
    x = 785,536.27

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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.