Home / 787,902.40-1,181,853.60-255,440.80

Finding the Fourth Proportional to 787,902.40, 1,181,853.60 and 255,440.80

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Solution

The fourth proportional to 787,902.40, 1,181,853.60 and 255,440.80 is: 383,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,902.40 : 1,181,853.60 = 255,440.80 : x
  2. Step 2: Convert to fraction form
    787,902.40/1,181,853.60 = 255,440.80/x
  3. Step 3: Cross multiply
    787,902.40x = 1,181,853.60 × 255,440.80
  4. Step 4: Simplify right side
    787,902.40x = 301,893,629,066.88
  5. Step 5: Solve for x
    x = 301,893,629,066.88/787,902.40
  6. Step 6: Final answer
    x = 383,161.20

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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.