Home / 726,899.92-1,003,121.76-404,603.12

Finding the Fourth Proportional to 726,899.92, 1,003,121.76 and 404,603.12

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Solution

The fourth proportional to 726,899.92, 1,003,121.76 and 404,603.12 is: 558,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,899.92 : 1,003,121.76 = 404,603.12 : x
  2. Step 2: Convert to fraction form
    726,899.92/1,003,121.76 = 404,603.12/x
  3. Step 3: Cross multiply
    726,899.92x = 1,003,121.76 × 404,603.12
  4. Step 4: Simplify right side
    726,899.92x = 405,866,193,835.89
  5. Step 5: Solve for x
    x = 405,866,193,835.89/726,899.92
  6. Step 6: Final answer
    x = 558,352.23

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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.