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Finding the Fourth Proportional to 609,280.66, 840,542.61 and 367,428.84

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Solution

The fourth proportional to 609,280.66, 840,542.61 and 367,428.84 is: 506,892.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,280.66 : 840,542.61 = 367,428.84 : x
  2. Step 2: Convert to fraction form
    609,280.66/840,542.61 = 367,428.84/x
  3. Step 3: Cross multiply
    609,280.66x = 840,542.61 × 367,428.84
  4. Step 4: Simplify right side
    609,280.66x = 308,839,596,162.87
  5. Step 5: Solve for x
    x = 308,839,596,162.87/609,280.66
  6. Step 6: Final answer
    x = 506,892.17

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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.