Home / 787,921.20-1,181,881.80-367,239.60

Finding the Fourth Proportional to 787,921.20, 1,181,881.80 and 367,239.60

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Solution

The fourth proportional to 787,921.20, 1,181,881.80 and 367,239.60 is: 550,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,921.20 : 1,181,881.80 = 367,239.60 : x
  2. Step 2: Convert to fraction form
    787,921.20/1,181,881.80 = 367,239.60/x
  3. Step 3: Cross multiply
    787,921.20x = 1,181,881.80 × 367,239.60
  4. Step 4: Simplify right side
    787,921.20x = 434,033,799,479.28
  5. Step 5: Solve for x
    x = 434,033,799,479.28/787,921.20
  6. Step 6: Final answer
    x = 550,859.40

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Half scale
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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.