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Finding the Fourth Proportional to 543,332.80, 814,999.20 and 490,188.70

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Solution

The fourth proportional to 543,332.80, 814,999.20 and 490,188.70 is: 735,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,332.80 : 814,999.20 = 490,188.70 : x
  2. Step 2: Convert to fraction form
    543,332.80/814,999.20 = 490,188.70/x
  3. Step 3: Cross multiply
    543,332.80x = 814,999.20 × 490,188.70
  4. Step 4: Simplify right side
    543,332.80x = 399,503,398,349.04
  5. Step 5: Solve for x
    x = 399,503,398,349.04/543,332.80
  6. Step 6: Final answer
    x = 735,283.05

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Similar ratio
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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.