Home / 572,447.20-789,433.12-417,257.44

Finding the Fourth Proportional to 572,447.20, 789,433.12 and 417,257.44

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Solution

The fourth proportional to 572,447.20, 789,433.12 and 417,257.44 is: 575,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,447.20 : 789,433.12 = 417,257.44 : x
  2. Step 2: Convert to fraction form
    572,447.20/789,433.12 = 417,257.44/x
  3. Step 3: Cross multiply
    572,447.20x = 789,433.12 × 417,257.44
  4. Step 4: Simplify right side
    572,447.20x = 329,396,842,702.41
  5. Step 5: Solve for x
    x = 329,396,842,702.41/572,447.20
  6. Step 6: Final answer
    x = 575,418.73

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Double scale
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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.