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Finding the Fourth Proportional to 586,761.30, 880,725.15 and 287,579.70

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Solution

The fourth proportional to 586,761.30, 880,725.15 and 287,579.70 is: 431,655.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,761.30 : 880,725.15 = 287,579.70 : x
  2. Step 2: Convert to fraction form
    586,761.30/880,725.15 = 287,579.70/x
  3. Step 3: Cross multiply
    586,761.30x = 880,725.15 × 287,579.70
  4. Step 4: Simplify right side
    586,761.30x = 253,278,674,419.46
  5. Step 5: Solve for x
    x = 253,278,674,419.46/586,761.30
  6. Step 6: Final answer
    x = 431,655.38

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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.