Home / 636,929.76-878,984.24-350,470.88

Finding the Fourth Proportional to 636,929.76, 878,984.24 and 350,470.88

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Solution

The fourth proportional to 636,929.76, 878,984.24 and 350,470.88 is: 483,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,929.76 : 878,984.24 = 350,470.88 : x
  2. Step 2: Convert to fraction form
    636,929.76/878,984.24 = 350,470.88/x
  3. Step 3: Cross multiply
    636,929.76x = 878,984.24 × 350,470.88
  4. Step 4: Simplify right side
    636,929.76x = 308,058,380,098.93
  5. Step 5: Solve for x
    x = 308,058,380,098.93/636,929.76
  6. Step 6: Final answer
    x = 483,661.46

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1.5x scale

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.