Home / 887,080.90-1,330,293.30-288,061.60

Finding the Fourth Proportional to 887,080.90, 1,330,293.30 and 288,061.60

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Solution

The fourth proportional to 887,080.90, 1,330,293.30 and 288,061.60 is: 431,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,080.90 : 1,330,293.30 = 288,061.60 : x
  2. Step 2: Convert to fraction form
    887,080.90/1,330,293.30 = 288,061.60/x
  3. Step 3: Cross multiply
    887,080.90x = 1,330,293.30 × 288,061.60
  4. Step 4: Simplify right side
    887,080.90x = 383,206,416,467.28
  5. Step 5: Solve for x
    x = 383,206,416,467.28/887,080.90
  6. Step 6: Final answer
    x = 431,985.87

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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.