Home / 453,022.80-679,534.20-137,479.20

Finding the Fourth Proportional to 453,022.80, 679,534.20 and 137,479.20

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Solution

The fourth proportional to 453,022.80, 679,534.20 and 137,479.20 is: 206,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,022.80 : 679,534.20 = 137,479.20 : x
  2. Step 2: Convert to fraction form
    453,022.80/679,534.20 = 137,479.20/x
  3. Step 3: Cross multiply
    453,022.80x = 679,534.20 × 137,479.20
  4. Step 4: Simplify right side
    453,022.80x = 93,421,818,188.64
  5. Step 5: Solve for x
    x = 93,421,818,188.64/453,022.80
  6. Step 6: Final answer
    x = 206,218.80

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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.