Home / 872,861.20-1,309,291.80-852,125.20

Finding the Fourth Proportional to 872,861.20, 1,309,291.80 and 852,125.20

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Solution

The fourth proportional to 872,861.20, 1,309,291.80 and 852,125.20 is: 1,278,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,861.20 : 1,309,291.80 = 852,125.20 : x
  2. Step 2: Convert to fraction form
    872,861.20/1,309,291.80 = 852,125.20/x
  3. Step 3: Cross multiply
    872,861.20x = 1,309,291.80 × 852,125.20
  4. Step 4: Simplify right side
    872,861.20x = 1,115,680,536,933.36
  5. Step 5: Solve for x
    x = 1,115,680,536,933.36/872,861.20
  6. Step 6: Final answer
    x = 1,278,187.80

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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.