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Finding the Fourth Proportional to 887,168.40, 1,330,752.60 and 437,958.60

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Solution

The fourth proportional to 887,168.40, 1,330,752.60 and 437,958.60 is: 656,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,168.40 : 1,330,752.60 = 437,958.60 : x
  2. Step 2: Convert to fraction form
    887,168.40/1,330,752.60 = 437,958.60/x
  3. Step 3: Cross multiply
    887,168.40x = 1,330,752.60 × 437,958.60
  4. Step 4: Simplify right side
    887,168.40x = 582,814,545,642.36
  5. Step 5: Solve for x
    x = 582,814,545,642.36/887,168.40
  6. Step 6: Final answer
    x = 656,937.90

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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.