Home / 836,438.80-1,254,658.20-303,977.20

Finding the Fourth Proportional to 836,438.80, 1,254,658.20 and 303,977.20

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Solution

The fourth proportional to 836,438.80, 1,254,658.20 and 303,977.20 is: 455,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,438.80 : 1,254,658.20 = 303,977.20 : x
  2. Step 2: Convert to fraction form
    836,438.80/1,254,658.20 = 303,977.20/x
  3. Step 3: Cross multiply
    836,438.80x = 1,254,658.20 × 303,977.20
  4. Step 4: Simplify right side
    836,438.80x = 381,387,486,593.04
  5. Step 5: Solve for x
    x = 381,387,486,593.04/836,438.80
  6. Step 6: Final answer
    x = 455,965.80

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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.