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Finding the Fourth Proportional to 609,278.20, 840,539.20 and 367,426.37

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Solution

The fourth proportional to 609,278.20, 840,539.20 and 367,426.37 is: 506,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,278.20 : 840,539.20 = 367,426.37 : x
  2. Step 2: Convert to fraction form
    609,278.20/840,539.20 = 367,426.37/x
  3. Step 3: Cross multiply
    609,278.20x = 840,539.20 × 367,426.37
  4. Step 4: Simplify right side
    609,278.20x = 308,836,267,098.70
  5. Step 5: Solve for x
    x = 308,836,267,098.70/609,278.20
  6. Step 6: Final answer
    x = 506,888.75

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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.