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Finding the Fourth Proportional to 707,251.62, 976,029.12 and 384,983.40

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Solution

The fourth proportional to 707,251.62, 976,029.12 and 384,983.40 is: 531,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,251.62 : 976,029.12 = 384,983.40 : x
  2. Step 2: Convert to fraction form
    707,251.62/976,029.12 = 384,983.40/x
  3. Step 3: Cross multiply
    707,251.62x = 976,029.12 × 384,983.40
  4. Step 4: Simplify right side
    707,251.62x = 375,755,009,116.61
  5. Step 5: Solve for x
    x = 375,755,009,116.61/707,251.62
  6. Step 6: Final answer
    x = 531,289.00

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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.