Home / 887,145.60-1,330,912.80-288,004.80

Finding the Fourth Proportional to 887,145.60, 1,330,912.80 and 288,004.80

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Solution

The fourth proportional to 887,145.60, 1,330,912.80 and 288,004.80 is: 432,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,145.60 : 1,330,912.80 = 288,004.80 : x
  2. Step 2: Convert to fraction form
    887,145.60/1,330,912.80 = 288,004.80/x
  3. Step 3: Cross multiply
    887,145.60x = 1,330,912.80 × 288,004.80
  4. Step 4: Simplify right side
    887,145.60x = 383,309,274,781.44
  5. Step 5: Solve for x
    x = 383,309,274,781.44/887,145.60
  6. Step 6: Final answer
    x = 432,070.31

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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.