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Finding the Fourth Proportional to 649,708.12, 896,707.92 and 377,933.59

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Solution

The fourth proportional to 649,708.12, 896,707.92 and 377,933.59 is: 521,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,708.12 : 896,707.92 = 377,933.59 : x
  2. Step 2: Convert to fraction form
    649,708.12/896,707.92 = 377,933.59/x
  3. Step 3: Cross multiply
    649,708.12x = 896,707.92 × 377,933.59
  4. Step 4: Simplify right side
    649,708.12x = 338,896,043,387.03
  5. Step 5: Solve for x
    x = 338,896,043,387.03/649,708.12
  6. Step 6: Final answer
    x = 521,612.76

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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.