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Finding the Fourth Proportional to 609,066.29, 840,318.26 and 354,368.27

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Solution

The fourth proportional to 609,066.29, 840,318.26 and 354,368.27 is: 488,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,066.29 : 840,318.26 = 354,368.27 : x
  2. Step 2: Convert to fraction form
    609,066.29/840,318.26 = 354,368.27/x
  3. Step 3: Cross multiply
    609,066.29x = 840,318.26 × 354,368.27
  4. Step 4: Simplify right side
    609,066.29x = 297,782,126,273.77
  5. Step 5: Solve for x
    x = 297,782,126,273.77/609,066.29
  6. Step 6: Final answer
    x = 488,915.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.