Home / 927,339.60-1,391,103.76-320,048.88

Finding the Fourth Proportional to 927,339.60, 1,391,103.76 and 320,048.88

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Solution

The fourth proportional to 927,339.60, 1,391,103.76 and 320,048.88 is: 480,105.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,339.60 : 1,391,103.76 = 320,048.88 : x
  2. Step 2: Convert to fraction form
    927,339.60/1,391,103.76 = 320,048.88/x
  3. Step 3: Cross multiply
    927,339.60x = 1,391,103.76 × 320,048.88
  4. Step 4: Simplify right side
    927,339.60x = 445,221,200,351.79
  5. Step 5: Solve for x
    x = 445,221,200,351.79/927,339.60
  6. Step 6: Final answer
    x = 480,105.89

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1.5x scale

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.