Home / 1,374,278.40-2,062,972.80-813,628.80

Finding the Fourth Proportional to 1,374,278.40, 2,062,972.80 and 813,628.80

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Solution

The fourth proportional to 1,374,278.40, 2,062,972.80 and 813,628.80 is: 1,221,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,278.40 : 2,062,972.80 = 813,628.80 : x
  2. Step 2: Convert to fraction form
    1,374,278.40/2,062,972.80 = 813,628.80/x
  3. Step 3: Cross multiply
    1,374,278.40x = 2,062,972.80 × 813,628.80
  4. Step 4: Simplify right side
    1,374,278.40x = 1,678,494,083,696.64
  5. Step 5: Solve for x
    x = 1,678,494,083,696.64/1,374,278.40
  6. Step 6: Final answer
    x = 1,221,363.94

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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.