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Finding the Fourth Proportional to 687,952.64, 949,342.68 and 382,048.45

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Solution

The fourth proportional to 687,952.64, 949,342.68 and 382,048.45 is: 527,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,952.64 : 949,342.68 = 382,048.45 : x
  2. Step 2: Convert to fraction form
    687,952.64/949,342.68 = 382,048.45/x
  3. Step 3: Cross multiply
    687,952.64x = 949,342.68 × 382,048.45
  4. Step 4: Simplify right side
    687,952.64x = 362,694,897,039.49
  5. Step 5: Solve for x
    x = 362,694,897,039.49/687,952.64
  6. Step 6: Final answer
    x = 527,209.11

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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.