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Finding the Fourth Proportional to 392,690.55, 589,035.83 and 363,822.15

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Solution

The fourth proportional to 392,690.55, 589,035.83 and 363,822.15 is: 545,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,690.55 : 589,035.83 = 363,822.15 : x
  2. Step 2: Convert to fraction form
    392,690.55/589,035.83 = 363,822.15/x
  3. Step 3: Cross multiply
    392,690.55x = 589,035.83 × 363,822.15
  4. Step 4: Simplify right side
    392,690.55x = 214,304,280,278.52
  5. Step 5: Solve for x
    x = 214,304,280,278.52/392,690.55
  6. Step 6: Final answer
    x = 545,733.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.