Home / 905,029.80-1,248,868.28-523,081.32

Finding the Fourth Proportional to 905,029.80, 1,248,868.28 and 523,081.32

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Solution

The fourth proportional to 905,029.80, 1,248,868.28 and 523,081.32 is: 721,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,029.80 : 1,248,868.28 = 523,081.32 : x
  2. Step 2: Convert to fraction form
    905,029.80/1,248,868.28 = 523,081.32/x
  3. Step 3: Cross multiply
    905,029.80x = 1,248,868.28 × 523,081.32
  4. Step 4: Simplify right side
    905,029.80x = 653,259,668,408.53
  5. Step 5: Solve for x
    x = 653,259,668,408.53/905,029.80
  6. Step 6: Final answer
    x = 721,810.12

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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.