Home / 439,605.20-659,407.80-329,013.20

Finding the Fourth Proportional to 439,605.20, 659,407.80 and 329,013.20

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Solution

The fourth proportional to 439,605.20, 659,407.80 and 329,013.20 is: 493,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,605.20 : 659,407.80 = 329,013.20 : x
  2. Step 2: Convert to fraction form
    439,605.20/659,407.80 = 329,013.20/x
  3. Step 3: Cross multiply
    439,605.20x = 659,407.80 × 329,013.20
  4. Step 4: Simplify right side
    439,605.20x = 216,953,870,382.96
  5. Step 5: Solve for x
    x = 216,953,870,382.96/439,605.20
  6. Step 6: Final answer
    x = 493,519.80

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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.