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Finding the Fourth Proportional to 768,988.98, 1,152,480.17 and 556,472.72

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Solution

The fourth proportional to 768,988.98, 1,152,480.17 and 556,472.72 is: 833,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,988.98 : 1,152,480.17 = 556,472.72 : x
  2. Step 2: Convert to fraction form
    768,988.98/1,152,480.17 = 556,472.72/x
  3. Step 3: Cross multiply
    768,988.98x = 1,152,480.17 × 556,472.72
  4. Step 4: Simplify right side
    768,988.98x = 641,323,766,401.20
  5. Step 5: Solve for x
    x = 641,323,766,401.20/768,988.98
  6. Step 6: Final answer
    x = 833,983.04

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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.