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Finding the Fourth Proportional to 887,061.20, 1,330,300.20 and 326,022.80

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Solution

The fourth proportional to 887,061.20, 1,330,300.20 and 326,022.80 is: 488,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,061.20 : 1,330,300.20 = 326,022.80 : x
  2. Step 2: Convert to fraction form
    887,061.20/1,330,300.20 = 326,022.80/x
  3. Step 3: Cross multiply
    887,061.20x = 1,330,300.20 × 326,022.80
  4. Step 4: Simplify right side
    887,061.20x = 433,708,196,044.56
  5. Step 5: Solve for x
    x = 433,708,196,044.56/887,061.20
  6. Step 6: Final answer
    x = 488,927.03

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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.