Home / 1,424,531.20-1,966,040.82-812,543.80

Finding the Fourth Proportional to 1,424,531.20, 1,966,040.82 and 812,543.80

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Solution

The fourth proportional to 1,424,531.20, 1,966,040.82 and 812,543.80 is: 1,121,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,531.20 : 1,966,040.82 = 812,543.80 : x
  2. Step 2: Convert to fraction form
    1,424,531.20/1,966,040.82 = 812,543.80/x
  3. Step 3: Cross multiply
    1,424,531.20x = 1,966,040.82 × 812,543.80
  4. Step 4: Simplify right side
    1,424,531.20x = 1,597,494,278,837.92
  5. Step 5: Solve for x
    x = 1,597,494,278,837.92/1,424,531.20
  6. Step 6: Final answer
    x = 1,121,417.54

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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.