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Finding the Fourth Proportional to 560,349.88, 773,279.17 and 318,632.47

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Solution

The fourth proportional to 560,349.88, 773,279.17 and 318,632.47 is: 439,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,349.88 : 773,279.17 = 318,632.47 : x
  2. Step 2: Convert to fraction form
    560,349.88/773,279.17 = 318,632.47/x
  3. Step 3: Cross multiply
    560,349.88x = 773,279.17 × 318,632.47
  4. Step 4: Simplify right side
    560,349.88x = 246,391,851,936.65
  5. Step 5: Solve for x
    x = 246,391,851,936.65/560,349.88
  6. Step 6: Final answer
    x = 439,710.72

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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.