Home / 1,218,552.42-1,681,654.91-674,688.23

Finding the Fourth Proportional to 1,218,552.42, 1,681,654.91 and 674,688.23

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Solution

The fourth proportional to 1,218,552.42, 1,681,654.91 and 674,688.23 is: 931,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,552.42 : 1,681,654.91 = 674,688.23 : x
  2. Step 2: Convert to fraction form
    1,218,552.42/1,681,654.91 = 674,688.23/x
  3. Step 3: Cross multiply
    1,218,552.42x = 1,681,654.91 × 674,688.23
  4. Step 4: Simplify right side
    1,218,552.42x = 1,134,592,781,854.61
  5. Step 5: Solve for x
    x = 1,134,592,781,854.61/1,218,552.42
  6. Step 6: Final answer
    x = 931,098.87

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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.