Home / 840,471.86-1,159,849.60-458,498.61

Finding the Fourth Proportional to 840,471.86, 1,159,849.60 and 458,498.61

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Solution

The fourth proportional to 840,471.86, 1,159,849.60 and 458,498.61 is: 632,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,471.86 : 1,159,849.60 = 458,498.61 : x
  2. Step 2: Convert to fraction form
    840,471.86/1,159,849.60 = 458,498.61/x
  3. Step 3: Cross multiply
    840,471.86x = 1,159,849.60 × 458,498.61
  4. Step 4: Simplify right side
    840,471.86x = 531,789,428,262.81
  5. Step 5: Solve for x
    x = 531,789,428,262.81/840,471.86
  6. Step 6: Final answer
    x = 632,727.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.