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Finding the Fourth Proportional to 887,557.80, 1,330,461.90 and 437,910.60

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Solution

The fourth proportional to 887,557.80, 1,330,461.90 and 437,910.60 is: 656,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,557.80 : 1,330,461.90 = 437,910.60 : x
  2. Step 2: Convert to fraction form
    887,557.80/1,330,461.90 = 437,910.60/x
  3. Step 3: Cross multiply
    887,557.80x = 1,330,461.90 × 437,910.60
  4. Step 4: Simplify right side
    887,557.80x = 582,623,368,906.14
  5. Step 5: Solve for x
    x = 582,623,368,906.14/887,557.80
  6. Step 6: Final answer
    x = 656,434.28

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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.