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Finding the Fourth Proportional to 559,414.62, 839,384.37 and 278,953.74

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Solution

The fourth proportional to 559,414.62, 839,384.37 and 278,953.74 is: 418,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,414.62 : 839,384.37 = 278,953.74 : x
  2. Step 2: Convert to fraction form
    559,414.62/839,384.37 = 278,953.74/x
  3. Step 3: Cross multiply
    559,414.62x = 839,384.37 × 278,953.74
  4. Step 4: Simplify right side
    559,414.62x = 234,149,409,309.04
  5. Step 5: Solve for x
    x = 234,149,409,309.04/559,414.62
  6. Step 6: Final answer
    x = 418,561.48

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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.