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Finding the Fourth Proportional to 707,753, 976,684.56 and 385,468.76

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Solution

The fourth proportional to 707,753, 976,684.56 and 385,468.76 is: 531,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,753 : 976,684.56 = 385,468.76 : x
  2. Step 2: Convert to fraction form
    707,753/976,684.56 = 385,468.76/x
  3. Step 3: Cross multiply
    707,753x = 976,684.56 × 385,468.76
  4. Step 4: Simplify right side
    707,753x = 376,481,386,254.35
  5. Step 5: Solve for x
    x = 376,481,386,254.35/707,753
  6. Step 6: Final answer
    x = 531,938.95

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1.5x scale

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.