Home / 800,818.66-1,105,129.80-438,242.56

Finding the Fourth Proportional to 800,818.66, 1,105,129.80 and 438,242.56

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Solution

The fourth proportional to 800,818.66, 1,105,129.80 and 438,242.56 is: 604,774.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,818.66 : 1,105,129.80 = 438,242.56 : x
  2. Step 2: Convert to fraction form
    800,818.66/1,105,129.80 = 438,242.56/x
  3. Step 3: Cross multiply
    800,818.66x = 1,105,129.80 × 438,242.56
  4. Step 4: Simplify right side
    800,818.66x = 484,314,912,684.29
  5. Step 5: Solve for x
    x = 484,314,912,684.29/800,818.66
  6. Step 6: Final answer
    x = 604,774.76

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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.