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Finding the Fourth Proportional to 580,163.72, 870,423.75 and 276,944.80

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Solution

The fourth proportional to 580,163.72, 870,423.75 and 276,944.80 is: 415,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,163.72 : 870,423.75 = 276,944.80 : x
  2. Step 2: Convert to fraction form
    580,163.72/870,423.75 = 276,944.80/x
  3. Step 3: Cross multiply
    580,163.72x = 870,423.75 × 276,944.80
  4. Step 4: Simplify right side
    580,163.72x = 241,059,332,484.15
  5. Step 5: Solve for x
    x = 241,059,332,484.15/580,163.72
  6. Step 6: Final answer
    x = 415,502.25

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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.