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Finding the Fourth Proportional to 572,511.70, 858,767.55 and 542,987.20

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Solution

The fourth proportional to 572,511.70, 858,767.55 and 542,987.20 is: 814,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,511.70 : 858,767.55 = 542,987.20 : x
  2. Step 2: Convert to fraction form
    572,511.70/858,767.55 = 542,987.20/x
  3. Step 3: Cross multiply
    572,511.70x = 858,767.55 × 542,987.20
  4. Step 4: Simplify right side
    572,511.70x = 466,299,787,425.36
  5. Step 5: Solve for x
    x = 466,299,787,425.36/572,511.70
  6. Step 6: Final answer
    x = 814,480.80

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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.