Home / 807,251.20-1,210,012.80-274,278.40

Finding the Fourth Proportional to 807,251.20, 1,210,012.80 and 274,278.40

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Solution

The fourth proportional to 807,251.20, 1,210,012.80 and 274,278.40 is: 411,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,251.20 : 1,210,012.80 = 274,278.40 : x
  2. Step 2: Convert to fraction form
    807,251.20/1,210,012.80 = 274,278.40/x
  3. Step 3: Cross multiply
    807,251.20x = 1,210,012.80 × 274,278.40
  4. Step 4: Simplify right side
    807,251.20x = 331,880,374,763.52
  5. Step 5: Solve for x
    x = 331,880,374,763.52/807,251.20
  6. Step 6: Final answer
    x = 411,124.04

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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.