Home / 837,172.80-1,255,759.20-304,711.20

Finding the Fourth Proportional to 837,172.80, 1,255,759.20 and 304,711.20

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Solution

The fourth proportional to 837,172.80, 1,255,759.20 and 304,711.20 is: 457,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,172.80 : 1,255,759.20 = 304,711.20 : x
  2. Step 2: Convert to fraction form
    837,172.80/1,255,759.20 = 304,711.20/x
  3. Step 3: Cross multiply
    837,172.80x = 1,255,759.20 × 304,711.20
  4. Step 4: Simplify right side
    837,172.80x = 382,643,892,743.04
  5. Step 5: Solve for x
    x = 382,643,892,743.04/837,172.80
  6. Step 6: Final answer
    x = 457,066.80

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Double scale
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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.