Home / 887,115.22-1,330,393.58-287,937.96

Finding the Fourth Proportional to 887,115.22, 1,330,393.58 and 287,937.96

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Solution

The fourth proportional to 887,115.22, 1,330,393.58 and 287,937.96 is: 431,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,115.22 : 1,330,393.58 = 287,937.96 : x
  2. Step 2: Convert to fraction form
    887,115.22/1,330,393.58 = 287,937.96/x
  3. Step 3: Cross multiply
    887,115.22x = 1,330,393.58 × 287,937.96
  4. Step 4: Simplify right side
    887,115.22x = 383,070,813,422.30
  5. Step 5: Solve for x
    x = 383,070,813,422.30/887,115.22
  6. Step 6: Final answer
    x = 431,816.30

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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.