Home / 1,247,979.52-1,872,037.32-394,987.47

Finding the Fourth Proportional to 1,247,979.52, 1,872,037.32 and 394,987.47

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Solution

The fourth proportional to 1,247,979.52, 1,872,037.32 and 394,987.47 is: 592,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,979.52 : 1,872,037.32 = 394,987.47 : x
  2. Step 2: Convert to fraction form
    1,247,979.52/1,872,037.32 = 394,987.47/x
  3. Step 3: Cross multiply
    1,247,979.52x = 1,872,037.32 × 394,987.47
  4. Step 4: Simplify right side
    1,247,979.52x = 739,431,284,772.38
  5. Step 5: Solve for x
    x = 739,431,284,772.38/1,247,979.52
  6. Step 6: Final answer
    x = 592,502.74

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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.