Home / 743,371.20-1,025,853.48-403,839.72

Finding the Fourth Proportional to 743,371.20, 1,025,853.48 and 403,839.72

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Solution

The fourth proportional to 743,371.20, 1,025,853.48 and 403,839.72 is: 557,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,371.20 : 1,025,853.48 = 403,839.72 : x
  2. Step 2: Convert to fraction form
    743,371.20/1,025,853.48 = 403,839.72/x
  3. Step 3: Cross multiply
    743,371.20x = 1,025,853.48 × 403,839.72
  4. Step 4: Simplify right side
    743,371.20x = 414,280,382,124.23
  5. Step 5: Solve for x
    x = 414,280,382,124.23/743,371.20
  6. Step 6: Final answer
    x = 557,299.48

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1.5x scale

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.