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Finding the Fourth Proportional to 675,904.74, 932,711.49 and 385,473.66

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Solution

The fourth proportional to 675,904.74, 932,711.49 and 385,473.66 is: 531,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,904.74 : 932,711.49 = 385,473.66 : x
  2. Step 2: Convert to fraction form
    675,904.74/932,711.49 = 385,473.66/x
  3. Step 3: Cross multiply
    675,904.74x = 932,711.49 × 385,473.66
  4. Step 4: Simplify right side
    675,904.74x = 359,535,711,774.35
  5. Step 5: Solve for x
    x = 359,535,711,774.35/675,904.74
  6. Step 6: Final answer
    x = 531,932.52

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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.