Home / 887,518.80-1,330,403.40-437,871.60

Finding the Fourth Proportional to 887,518.80, 1,330,403.40 and 437,871.60

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Solution

The fourth proportional to 887,518.80, 1,330,403.40 and 437,871.60 is: 656,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,518.80 : 1,330,403.40 = 437,871.60 : x
  2. Step 2: Convert to fraction form
    887,518.80/1,330,403.40 = 437,871.60/x
  3. Step 3: Cross multiply
    887,518.80x = 1,330,403.40 × 437,871.60
  4. Step 4: Simplify right side
    887,518.80x = 582,545,865,403.44
  5. Step 5: Solve for x
    x = 582,545,865,403.44/887,518.80
  6. Step 6: Final answer
    x = 656,375.80

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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.