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Finding the Fourth Proportional to 494,776.80, 742,165.20 and 323,534.70

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Solution

The fourth proportional to 494,776.80, 742,165.20 and 323,534.70 is: 485,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,776.80 : 742,165.20 = 323,534.70 : x
  2. Step 2: Convert to fraction form
    494,776.80/742,165.20 = 323,534.70/x
  3. Step 3: Cross multiply
    494,776.80x = 742,165.20 × 323,534.70
  4. Step 4: Simplify right side
    494,776.80x = 240,116,195,332.44
  5. Step 5: Solve for x
    x = 240,116,195,332.44/494,776.80
  6. Step 6: Final answer
    x = 485,302.05

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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.