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Finding the Fourth Proportional to 692,952.72, 1,039,497 and 288,061.20

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Solution

The fourth proportional to 692,952.72, 1,039,497 and 288,061.20 is: 432,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,952.72 : 1,039,497 = 288,061.20 : x
  2. Step 2: Convert to fraction form
    692,952.72/1,039,497 = 288,061.20/x
  3. Step 3: Cross multiply
    692,952.72x = 1,039,497 × 288,061.20
  4. Step 4: Simplify right side
    692,952.72x = 299,438,753,216.40
  5. Step 5: Solve for x
    x = 299,438,753,216.40/692,952.72
  6. Step 6: Final answer
    x = 432,120.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.