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Finding the Fourth Proportional to 545,460.85, 818,191.28 and 498,221.65

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Solution

The fourth proportional to 545,460.85, 818,191.28 and 498,221.65 is: 747,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,460.85 : 818,191.28 = 498,221.65 : x
  2. Step 2: Convert to fraction form
    545,460.85/818,191.28 = 498,221.65/x
  3. Step 3: Cross multiply
    545,460.85x = 818,191.28 × 498,221.65
  4. Step 4: Simplify right side
    545,460.85x = 407,640,607,046.10
  5. Step 5: Solve for x
    x = 407,640,607,046.10/545,460.85
  6. Step 6: Final answer
    x = 747,332.48

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Double scale
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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.