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Finding the Fourth Proportional to 572,494.68, 790,078.32 and 317,850.12

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Solution

The fourth proportional to 572,494.68, 790,078.32 and 317,850.12 is: 438,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,494.68 : 790,078.32 = 317,850.12 : x
  2. Step 2: Convert to fraction form
    572,494.68/790,078.32 = 317,850.12/x
  3. Step 3: Cross multiply
    572,494.68x = 790,078.32 × 317,850.12
  4. Step 4: Simplify right side
    572,494.68x = 251,126,488,821.40
  5. Step 5: Solve for x
    x = 251,126,488,821.40/572,494.68
  6. Step 6: Final answer
    x = 438,652.96

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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.