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Finding the Fourth Proportional to 609,280.48, 840,542.35 and 367,428.65

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Solution

The fourth proportional to 609,280.48, 840,542.35 and 367,428.65 is: 506,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,280.48 : 840,542.35 = 367,428.65 : x
  2. Step 2: Convert to fraction form
    609,280.48/840,542.35 = 367,428.65/x
  3. Step 3: Cross multiply
    609,280.48x = 840,542.35 × 367,428.65
  4. Step 4: Simplify right side
    609,280.48x = 308,839,343,029.68
  5. Step 5: Solve for x
    x = 308,839,343,029.68/609,280.48
  6. Step 6: Final answer
    x = 506,891.91

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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.