Home / 771,289.20-1,156,744.98-322,013.78

Finding the Fourth Proportional to 771,289.20, 1,156,744.98 and 322,013.78

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Solution

The fourth proportional to 771,289.20, 1,156,744.98 and 322,013.78 is: 482,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,289.20 : 1,156,744.98 = 322,013.78 : x
  2. Step 2: Convert to fraction form
    771,289.20/1,156,744.98 = 322,013.78/x
  3. Step 3: Cross multiply
    771,289.20x = 1,156,744.98 × 322,013.78
  4. Step 4: Simplify right side
    771,289.20x = 372,487,823,505.82
  5. Step 5: Solve for x
    x = 372,487,823,505.82/771,289.20
  6. Step 6: Final answer
    x = 482,941.84

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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.