Home / 879,207.12-1,318,796.28-280,160.24

Finding the Fourth Proportional to 879,207.12, 1,318,796.28 and 280,160.24

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Solution

The fourth proportional to 879,207.12, 1,318,796.28 and 280,160.24 is: 420,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,207.12 : 1,318,796.28 = 280,160.24 : x
  2. Step 2: Convert to fraction form
    879,207.12/1,318,796.28 = 280,160.24/x
  3. Step 3: Cross multiply
    879,207.12x = 1,318,796.28 × 280,160.24
  4. Step 4: Simplify right side
    879,207.12x = 369,474,282,315.91
  5. Step 5: Solve for x
    x = 369,474,282,315.91/879,207.12
  6. Step 6: Final answer
    x = 420,235.77

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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.