Home / 810,002.70-1,215,004.05-491,138.10

Finding the Fourth Proportional to 810,002.70, 1,215,004.05 and 491,138.10

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Solution

The fourth proportional to 810,002.70, 1,215,004.05 and 491,138.10 is: 736,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,002.70 : 1,215,004.05 = 491,138.10 : x
  2. Step 2: Convert to fraction form
    810,002.70/1,215,004.05 = 491,138.10/x
  3. Step 3: Cross multiply
    810,002.70x = 1,215,004.05 × 491,138.10
  4. Step 4: Simplify right side
    810,002.70x = 596,734,780,609.31
  5. Step 5: Solve for x
    x = 596,734,780,609.31/810,002.70
  6. Step 6: Final answer
    x = 736,707.15

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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.