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Finding the Fourth Proportional to 425,382.40, 587,029.44 and 234,386.56

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Solution

The fourth proportional to 425,382.40, 587,029.44 and 234,386.56 is: 323,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,382.40 : 587,029.44 = 234,386.56 : x
  2. Step 2: Convert to fraction form
    425,382.40/587,029.44 = 234,386.56/x
  3. Step 3: Cross multiply
    425,382.40x = 587,029.44 × 234,386.56
  4. Step 4: Simplify right side
    425,382.40x = 137,591,811,060.33
  5. Step 5: Solve for x
    x = 137,591,811,060.33/425,382.40
  6. Step 6: Final answer
    x = 323,454.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.