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Finding the Fourth Proportional to 609,279.87, 840,541.51 and 367,428.04

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Solution

The fourth proportional to 609,279.87, 840,541.51 and 367,428.04 is: 506,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,279.87 : 840,541.51 = 367,428.04 : x
  2. Step 2: Convert to fraction form
    609,279.87/840,541.51 = 367,428.04/x
  3. Step 3: Cross multiply
    609,279.87x = 840,541.51 × 367,428.04
  4. Step 4: Simplify right side
    609,279.87x = 308,838,521,659.29
  5. Step 5: Solve for x
    x = 308,838,521,659.29/609,279.87
  6. Step 6: Final answer
    x = 506,891.07

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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.