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Finding the Fourth Proportional to 580,070.48, 870,105.72 and 159,348.56

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Solution

The fourth proportional to 580,070.48, 870,105.72 and 159,348.56 is: 239,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,070.48 : 870,105.72 = 159,348.56 : x
  2. Step 2: Convert to fraction form
    580,070.48/870,105.72 = 159,348.56/x
  3. Step 3: Cross multiply
    580,070.48x = 870,105.72 × 159,348.56
  4. Step 4: Simplify right side
    580,070.48x = 138,650,093,529.76
  5. Step 5: Solve for x
    x = 138,650,093,529.76/580,070.48
  6. Step 6: Final answer
    x = 239,022.84

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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.