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Finding the Fourth Proportional to 580,465.68, 870,947.96 and 300,179.76

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Solution

The fourth proportional to 580,465.68, 870,947.96 and 300,179.76 is: 450,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,465.68 : 870,947.96 = 300,179.76 : x
  2. Step 2: Convert to fraction form
    580,465.68/870,947.96 = 300,179.76/x
  3. Step 3: Cross multiply
    580,465.68x = 870,947.96 × 300,179.76
  4. Step 4: Simplify right side
    580,465.68x = 261,440,949,605.29
  5. Step 5: Solve for x
    x = 261,440,949,605.29/580,465.68
  6. Step 6: Final answer
    x = 450,398.63

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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.