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Finding the Fourth Proportional to 707,252.88, 976,029.72 and 384,984

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Solution

The fourth proportional to 707,252.88, 976,029.72 and 384,984 is: 531,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,252.88 : 976,029.72 = 384,984 : x
  2. Step 2: Convert to fraction form
    707,252.88/976,029.72 = 384,984/x
  3. Step 3: Cross multiply
    707,252.88x = 976,029.72 × 384,984
  4. Step 4: Simplify right side
    707,252.88x = 375,755,825,724.48
  5. Step 5: Solve for x
    x = 375,755,825,724.48/707,252.88
  6. Step 6: Final answer
    x = 531,289.21

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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.