Home / 1,280,269.52-1,920,502.24-381,642.56

Finding the Fourth Proportional to 1,280,269.52, 1,920,502.24 and 381,642.56

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Solution

The fourth proportional to 1,280,269.52, 1,920,502.24 and 381,642.56 is: 572,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,269.52 : 1,920,502.24 = 381,642.56 : x
  2. Step 2: Convert to fraction form
    1,280,269.52/1,920,502.24 = 381,642.56/x
  3. Step 3: Cross multiply
    1,280,269.52x = 1,920,502.24 × 381,642.56
  4. Step 4: Simplify right side
    1,280,269.52x = 732,945,391,359.33
  5. Step 5: Solve for x
    x = 732,945,391,359.33/1,280,269.52
  6. Step 6: Final answer
    x = 572,493.04

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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.