Home / 879,190.17-1,318,770.82-280,143.21

Finding the Fourth Proportional to 879,190.17, 1,318,770.82 and 280,143.21

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Solution

The fourth proportional to 879,190.17, 1,318,770.82 and 280,143.21 is: 420,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,190.17 : 1,318,770.82 = 280,143.21 : x
  2. Step 2: Convert to fraction form
    879,190.17/1,318,770.82 = 280,143.21/x
  3. Step 3: Cross multiply
    879,190.17x = 1,318,770.82 × 280,143.21
  4. Step 4: Simplify right side
    879,190.17x = 369,444,690,769.13
  5. Step 5: Solve for x
    x = 369,444,690,769.13/879,190.17
  6. Step 6: Final answer
    x = 420,210.22

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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.