Home / 887,021.40-1,330,532.10-437,811.60

Finding the Fourth Proportional to 887,021.40, 1,330,532.10 and 437,811.60

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Solution

The fourth proportional to 887,021.40, 1,330,532.10 and 437,811.60 is: 656,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,021.40 : 1,330,532.10 = 437,811.60 : x
  2. Step 2: Convert to fraction form
    887,021.40/1,330,532.10 = 437,811.60/x
  3. Step 3: Cross multiply
    887,021.40x = 1,330,532.10 × 437,811.60
  4. Step 4: Simplify right side
    887,021.40x = 582,522,387,552.36
  5. Step 5: Solve for x
    x = 582,522,387,552.36/887,021.40
  6. Step 6: Final answer
    x = 656,717.40

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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.