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Finding the Fourth Proportional to 719,174.88, 992,460.33 and 396,884.93

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Solution

The fourth proportional to 719,174.88, 992,460.33 and 396,884.93 is: 547,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,174.88 : 992,460.33 = 396,884.93 : x
  2. Step 2: Convert to fraction form
    719,174.88/992,460.33 = 396,884.93/x
  3. Step 3: Cross multiply
    719,174.88x = 992,460.33 × 396,884.93
  4. Step 4: Simplify right side
    719,174.88x = 393,892,543,637.53
  5. Step 5: Solve for x
    x = 393,892,543,637.53/719,174.88
  6. Step 6: Final answer
    x = 547,700.64

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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.