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Finding the Fourth Proportional to 605,752.30, 908,628.45 and 487,654.30

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Solution

The fourth proportional to 605,752.30, 908,628.45 and 487,654.30 is: 731,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,752.30 : 908,628.45 = 487,654.30 : x
  2. Step 2: Convert to fraction form
    605,752.30/908,628.45 = 487,654.30/x
  3. Step 3: Cross multiply
    605,752.30x = 908,628.45 × 487,654.30
  4. Step 4: Simplify right side
    605,752.30x = 443,096,570,744.84
  5. Step 5: Solve for x
    x = 443,096,570,744.84/605,752.30
  6. Step 6: Final answer
    x = 731,481.45

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Double scale
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Similar ratio
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1.5x scale

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.