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Finding the Fourth Proportional to 609,654.56, 915,049.25 and 310,359.20

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Solution

The fourth proportional to 609,654.56, 915,049.25 and 310,359.20 is: 465,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,654.56 : 915,049.25 = 310,359.20 : x
  2. Step 2: Convert to fraction form
    609,654.56/915,049.25 = 310,359.20/x
  3. Step 3: Cross multiply
    609,654.56x = 915,049.25 × 310,359.20
  4. Step 4: Simplify right side
    609,654.56x = 283,993,948,207.37
  5. Step 5: Solve for x
    x = 283,993,948,207.37/609,654.56
  6. Step 6: Final answer
    x = 465,827.65

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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.