Home / 743,475.08-1,025,982.96-403,940.90

Finding the Fourth Proportional to 743,475.08, 1,025,982.96 and 403,940.90

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Solution

The fourth proportional to 743,475.08, 1,025,982.96 and 403,940.90 is: 557,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,475.08 : 1,025,982.96 = 403,940.90 : x
  2. Step 2: Convert to fraction form
    743,475.08/1,025,982.96 = 403,940.90/x
  3. Step 3: Cross multiply
    743,475.08x = 1,025,982.96 × 403,940.90
  4. Step 4: Simplify right side
    743,475.08x = 414,436,480,247.06
  5. Step 5: Solve for x
    x = 414,436,480,247.06/743,475.08
  6. Step 6: Final answer
    x = 557,431.57

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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.