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Finding the Fourth Proportional to 707,523.80, 976,373.06 and 385,233.91

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Solution

The fourth proportional to 707,523.80, 976,373.06 and 385,233.91 is: 531,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,523.80 : 976,373.06 = 385,233.91 : x
  2. Step 2: Convert to fraction form
    707,523.80/976,373.06 = 385,233.91/x
  3. Step 3: Cross multiply
    707,523.80x = 976,373.06 × 385,233.91
  4. Step 4: Simplify right side
    707,523.80x = 376,132,007,155.36
  5. Step 5: Solve for x
    x = 376,132,007,155.36/707,523.80
  6. Step 6: Final answer
    x = 531,617.47

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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.