Home / 872,877.20-1,309,315.80-852,141.20

Finding the Fourth Proportional to 872,877.20, 1,309,315.80 and 852,141.20

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Solution

The fourth proportional to 872,877.20, 1,309,315.80 and 852,141.20 is: 1,278,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,877.20 : 1,309,315.80 = 852,141.20 : x
  2. Step 2: Convert to fraction form
    872,877.20/1,309,315.80 = 852,141.20/x
  3. Step 3: Cross multiply
    872,877.20x = 1,309,315.80 × 852,141.20
  4. Step 4: Simplify right side
    872,877.20x = 1,115,721,936,990.96
  5. Step 5: Solve for x
    x = 1,115,721,936,990.96/872,877.20
  6. Step 6: Final answer
    x = 1,278,211.80

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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.