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Finding the Fourth Proportional to 693,270.24, 956,706.35 and 387,399.30

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Solution

The fourth proportional to 693,270.24, 956,706.35 and 387,399.30 is: 534,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,270.24 : 956,706.35 = 387,399.30 : x
  2. Step 2: Convert to fraction form
    693,270.24/956,706.35 = 387,399.30/x
  3. Step 3: Cross multiply
    693,270.24x = 956,706.35 × 387,399.30
  4. Step 4: Simplify right side
    693,270.24x = 370,627,368,358.56
  5. Step 5: Solve for x
    x = 370,627,368,358.56/693,270.24
  6. Step 6: Final answer
    x = 534,607.36

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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.