Home / 887,142.60-1,330,908.30-288,001.80

Finding the Fourth Proportional to 887,142.60, 1,330,908.30 and 288,001.80

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Solution

The fourth proportional to 887,142.60, 1,330,908.30 and 288,001.80 is: 432,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,142.60 : 1,330,908.30 = 288,001.80 : x
  2. Step 2: Convert to fraction form
    887,142.60/1,330,908.30 = 288,001.80/x
  3. Step 3: Cross multiply
    887,142.60x = 1,330,908.30 × 288,001.80
  4. Step 4: Simplify right side
    887,142.60x = 383,303,986,034.94
  5. Step 5: Solve for x
    x = 383,303,986,034.94/887,142.60
  6. Step 6: Final answer
    x = 432,065.81

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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.