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Finding the Fourth Proportional to 560,046.35, 772,909.89 and 318,404.72

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Solution

The fourth proportional to 560,046.35, 772,909.89 and 318,404.72 is: 439,424.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,046.35 : 772,909.89 = 318,404.72 : x
  2. Step 2: Convert to fraction form
    560,046.35/772,909.89 = 318,404.72/x
  3. Step 3: Cross multiply
    560,046.35x = 772,909.89 × 318,404.72
  4. Step 4: Simplify right side
    560,046.35x = 246,098,157,110.68
  5. Step 5: Solve for x
    x = 246,098,157,110.68/560,046.35
  6. Step 6: Final answer
    x = 439,424.62

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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.