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Finding the Fourth Proportional to 580,001.40, 870,002.10 and 534,511.80

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Solution

The fourth proportional to 580,001.40, 870,002.10 and 534,511.80 is: 801,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,001.40 : 870,002.10 = 534,511.80 : x
  2. Step 2: Convert to fraction form
    580,001.40/870,002.10 = 534,511.80/x
  3. Step 3: Cross multiply
    580,001.40x = 870,002.10 × 534,511.80
  4. Step 4: Simplify right side
    580,001.40x = 465,026,388,474.78
  5. Step 5: Solve for x
    x = 465,026,388,474.78/580,001.40
  6. Step 6: Final answer
    x = 801,767.70

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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.