Home / 992,614.32-1,489,170.96-318,755.88

Finding the Fourth Proportional to 992,614.32, 1,489,170.96 and 318,755.88

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Solution

The fourth proportional to 992,614.32, 1,489,170.96 and 318,755.88 is: 478,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,614.32 : 1,489,170.96 = 318,755.88 : x
  2. Step 2: Convert to fraction form
    992,614.32/1,489,170.96 = 318,755.88/x
  3. Step 3: Cross multiply
    992,614.32x = 1,489,170.96 × 318,755.88
  4. Step 4: Simplify right side
    992,614.32x = 474,681,999,825.25
  5. Step 5: Solve for x
    x = 474,681,999,825.25/992,614.32
  6. Step 6: Final answer
    x = 478,213.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.