Home / 439,880.20-659,382.90-202,809.40

Finding the Fourth Proportional to 439,880.20, 659,382.90 and 202,809.40

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Solution

The fourth proportional to 439,880.20, 659,382.90 and 202,809.40 is: 304,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,880.20 : 659,382.90 = 202,809.40 : x
  2. Step 2: Convert to fraction form
    439,880.20/659,382.90 = 202,809.40/x
  3. Step 3: Cross multiply
    439,880.20x = 659,382.90 × 202,809.40
  4. Step 4: Simplify right side
    439,880.20x = 133,729,050,319.26
  5. Step 5: Solve for x
    x = 133,729,050,319.26/439,880.20
  6. Step 6: Final answer
    x = 304,012.43

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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.