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Finding the Fourth Proportional to 609,279.79, 840,541.40 and 367,427.97

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Solution

The fourth proportional to 609,279.79, 840,541.40 and 367,427.97 is: 506,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,279.79 : 840,541.40 = 367,427.97 : x
  2. Step 2: Convert to fraction form
    609,279.79/840,541.40 = 367,427.97/x
  3. Step 3: Cross multiply
    609,279.79x = 840,541.40 × 367,427.97
  4. Step 4: Simplify right side
    609,279.79x = 308,838,416,100.25
  5. Step 5: Solve for x
    x = 308,838,416,100.25/609,279.79
  6. Step 6: Final answer
    x = 506,890.96

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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.