Home / 743,108.22-1,025,495.37-403,578.90

Finding the Fourth Proportional to 743,108.22, 1,025,495.37 and 403,578.90

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Solution

The fourth proportional to 743,108.22, 1,025,495.37 and 403,578.90 is: 556,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,108.22 : 1,025,495.37 = 403,578.90 : x
  2. Step 2: Convert to fraction form
    743,108.22/1,025,495.37 = 403,578.90/x
  3. Step 3: Cross multiply
    743,108.22x = 1,025,495.37 × 403,578.90
  4. Step 4: Simplify right side
    743,108.22x = 413,868,293,379.69
  5. Step 5: Solve for x
    x = 413,868,293,379.69/743,108.22
  6. Step 6: Final answer
    x = 556,942.15

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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.