Home / 439,815.80-659,618.10-124,302.20

Finding the Fourth Proportional to 439,815.80, 659,618.10 and 124,302.20

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Solution

The fourth proportional to 439,815.80, 659,618.10 and 124,302.20 is: 186,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,815.80 : 659,618.10 = 124,302.20 : x
  2. Step 2: Convert to fraction form
    439,815.80/659,618.10 = 124,302.20/x
  3. Step 3: Cross multiply
    439,815.80x = 659,618.10 × 124,302.20
  4. Step 4: Simplify right side
    439,815.80x = 81,991,980,989.82
  5. Step 5: Solve for x
    x = 81,991,980,989.82/439,815.80
  6. Step 6: Final answer
    x = 186,423.45

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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.