Home / 842,575.64-1,162,470.49-479,742.89

Finding the Fourth Proportional to 842,575.64, 1,162,470.49 and 479,742.89

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Solution

The fourth proportional to 842,575.64, 1,162,470.49 and 479,742.89 is: 661,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,575.64 : 1,162,470.49 = 479,742.89 : x
  2. Step 2: Convert to fraction form
    842,575.64/1,162,470.49 = 479,742.89/x
  3. Step 3: Cross multiply
    842,575.64x = 1,162,470.49 × 479,742.89
  4. Step 4: Simplify right side
    842,575.64x = 557,686,945,400.61
  5. Step 5: Solve for x
    x = 557,686,945,400.61/842,575.64
  6. Step 6: Final answer
    x = 661,883.54

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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.