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Finding the Fourth Proportional to 560,727.65, 773,777.13 and 318,987.47

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Solution

The fourth proportional to 560,727.65, 773,777.13 and 318,987.47 is: 440,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,727.65 : 773,777.13 = 318,987.47 : x
  2. Step 2: Convert to fraction form
    560,727.65/773,777.13 = 318,987.47/x
  3. Step 3: Cross multiply
    560,727.65x = 773,777.13 × 318,987.47
  4. Step 4: Simplify right side
    560,727.65x = 246,825,209,042.56
  5. Step 5: Solve for x
    x = 246,825,209,042.56/560,727.65
  6. Step 6: Final answer
    x = 440,187.33

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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.