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Finding the Fourth Proportional to 539,416.80, 744,217.68 and 348,542.64

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Solution

The fourth proportional to 539,416.80, 744,217.68 and 348,542.64 is: 480,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,416.80 : 744,217.68 = 348,542.64 : x
  2. Step 2: Convert to fraction form
    539,416.80/744,217.68 = 348,542.64/x
  3. Step 3: Cross multiply
    539,416.80x = 744,217.68 × 348,542.64
  4. Step 4: Simplify right side
    539,416.80x = 259,391,594,921.88
  5. Step 5: Solve for x
    x = 259,391,594,921.88/539,416.80
  6. Step 6: Final answer
    x = 480,874.15

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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.