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Finding the Fourth Proportional to 586,930.31, 880,695.70 and 279,530.28

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Solution

The fourth proportional to 586,930.31, 880,695.70 and 279,530.28 is: 419,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,930.31 : 880,695.70 = 279,530.28 : x
  2. Step 2: Convert to fraction form
    586,930.31/880,695.70 = 279,530.28/x
  3. Step 3: Cross multiply
    586,930.31x = 880,695.70 × 279,530.28
  4. Step 4: Simplify right side
    586,930.31x = 246,181,115,615.80
  5. Step 5: Solve for x
    x = 246,181,115,615.80/586,930.31
  6. Step 6: Final answer
    x = 419,438.41

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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.