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Finding the Fourth Proportional to 560,200.47, 773,142 and 318,519.25

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Solution

The fourth proportional to 560,200.47, 773,142 and 318,519.25 is: 439,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,200.47 : 773,142 = 318,519.25 : x
  2. Step 2: Convert to fraction form
    560,200.47/773,142 = 318,519.25/x
  3. Step 3: Cross multiply
    560,200.47x = 773,142 × 318,519.25
  4. Step 4: Simplify right side
    560,200.47x = 246,260,609,983.50
  5. Step 5: Solve for x
    x = 246,260,609,983.50/560,200.47
  6. Step 6: Final answer
    x = 439,593.72

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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.