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Finding the Fourth Proportional to 542,805.72, 813,119.94 and 276,555.48

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Solution

The fourth proportional to 542,805.72, 813,119.94 and 276,555.48 is: 414,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,805.72 : 813,119.94 = 276,555.48 : x
  2. Step 2: Convert to fraction form
    542,805.72/813,119.94 = 276,555.48/x
  3. Step 3: Cross multiply
    542,805.72x = 813,119.94 × 276,555.48
  4. Step 4: Simplify right side
    542,805.72x = 224,872,775,304.27
  5. Step 5: Solve for x
    x = 224,872,775,304.27/542,805.72
  6. Step 6: Final answer
    x = 414,278.57

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1.5x scale

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.