Home / 743,118.76-1,025,505.66-403,579.72

Finding the Fourth Proportional to 743,118.76, 1,025,505.66 and 403,579.72

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Solution

The fourth proportional to 743,118.76, 1,025,505.66 and 403,579.72 is: 556,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,118.76 : 1,025,505.66 = 403,579.72 : x
  2. Step 2: Convert to fraction form
    743,118.76/1,025,505.66 = 403,579.72/x
  3. Step 3: Cross multiply
    743,118.76x = 1,025,505.66 × 403,579.72
  4. Step 4: Simplify right side
    743,118.76x = 413,873,287,121.22
  5. Step 5: Solve for x
    x = 413,873,287,121.22/743,118.76
  6. Step 6: Final answer
    x = 556,940.98

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Double scale
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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.