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Finding the Fourth Proportional to 687,952.31, 949,342.41 and 382,048.29

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Solution

The fourth proportional to 687,952.31, 949,342.41 and 382,048.29 is: 527,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,952.31 : 949,342.41 = 382,048.29 : x
  2. Step 2: Convert to fraction form
    687,952.31/949,342.41 = 382,048.29/x
  3. Step 3: Cross multiply
    687,952.31x = 949,342.41 × 382,048.29
  4. Step 4: Simplify right side
    687,952.31x = 362,694,644,364.98
  5. Step 5: Solve for x
    x = 362,694,644,364.98/687,952.31
  6. Step 6: Final answer
    x = 527,209.00

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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.