Home / 743,000.72-1,025,344.78-403,468.97

Finding the Fourth Proportional to 743,000.72, 1,025,344.78 and 403,468.97

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Solution

The fourth proportional to 743,000.72, 1,025,344.78 and 403,468.97 is: 556,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,000.72 : 1,025,344.78 = 403,468.97 : x
  2. Step 2: Convert to fraction form
    743,000.72/1,025,344.78 = 403,468.97/x
  3. Step 3: Cross multiply
    743,000.72x = 1,025,344.78 × 403,468.97
  4. Step 4: Simplify right side
    743,000.72x = 413,694,796,146.08
  5. Step 5: Solve for x
    x = 413,694,796,146.08/743,000.72
  6. Step 6: Final answer
    x = 556,789.23

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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.