Home / 879,070.96-1,318,805.28-280,066.24

Finding the Fourth Proportional to 879,070.96, 1,318,805.28 and 280,066.24

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Solution

The fourth proportional to 879,070.96, 1,318,805.28 and 280,066.24 is: 420,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,070.96 : 1,318,805.28 = 280,066.24 : x
  2. Step 2: Convert to fraction form
    879,070.96/1,318,805.28 = 280,066.24/x
  3. Step 3: Cross multiply
    879,070.96x = 1,318,805.28 × 280,066.24
  4. Step 4: Simplify right side
    879,070.96x = 369,352,836,061.75
  5. Step 5: Solve for x
    x = 369,352,836,061.75/879,070.96
  6. Step 6: Final answer
    x = 420,162.71

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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.