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Finding the Fourth Proportional to 609,820.66, 915,568.89 and 310,502.38

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Solution

The fourth proportional to 609,820.66, 915,568.89 and 310,502.38 is: 466,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,820.66 : 915,568.89 = 310,502.38 : x
  2. Step 2: Convert to fraction form
    609,820.66/915,568.89 = 310,502.38/x
  3. Step 3: Cross multiply
    609,820.66x = 915,568.89 × 310,502.38
  4. Step 4: Simplify right side
    609,820.66x = 284,286,319,398.96
  5. Step 5: Solve for x
    x = 284,286,319,398.96/609,820.66
  6. Step 6: Final answer
    x = 466,180.20

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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.