Home / 495,987.40-743,981.10-296,921.80

Finding the Fourth Proportional to 495,987.40, 743,981.10 and 296,921.80

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Solution

The fourth proportional to 495,987.40, 743,981.10 and 296,921.80 is: 445,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,987.40 : 743,981.10 = 296,921.80 : x
  2. Step 2: Convert to fraction form
    495,987.40/743,981.10 = 296,921.80/x
  3. Step 3: Cross multiply
    495,987.40x = 743,981.10 × 296,921.80
  4. Step 4: Simplify right side
    495,987.40x = 220,904,207,377.98
  5. Step 5: Solve for x
    x = 220,904,207,377.98/495,987.40
  6. Step 6: Final answer
    x = 445,382.70

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Similar ratio
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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.