Home / 911,449.04-1,367,329.08-280,348.88

Finding the Fourth Proportional to 911,449.04, 1,367,329.08 and 280,348.88

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Solution

The fourth proportional to 911,449.04, 1,367,329.08 and 280,348.88 is: 420,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,449.04 : 1,367,329.08 = 280,348.88 : x
  2. Step 2: Convert to fraction form
    911,449.04/1,367,329.08 = 280,348.88/x
  3. Step 3: Cross multiply
    911,449.04x = 1,367,329.08 × 280,348.88
  4. Step 4: Simplify right side
    911,449.04x = 383,329,176,169.43
  5. Step 5: Solve for x
    x = 383,329,176,169.43/911,449.04
  6. Step 6: Final answer
    x = 420,571.16

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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.