Home / 810,728.08-1,215,436.20-337,768.72

Finding the Fourth Proportional to 810,728.08, 1,215,436.20 and 337,768.72

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Solution

The fourth proportional to 810,728.08, 1,215,436.20 and 337,768.72 is: 506,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,728.08 : 1,215,436.20 = 337,768.72 : x
  2. Step 2: Convert to fraction form
    810,728.08/1,215,436.20 = 337,768.72/x
  3. Step 3: Cross multiply
    810,728.08x = 1,215,436.20 × 337,768.72
  4. Step 4: Simplify right side
    810,728.08x = 410,536,329,515.66
  5. Step 5: Solve for x
    x = 410,536,329,515.66/810,728.08
  6. Step 6: Final answer
    x = 506,379.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.