Home / 1,431,721.50-1,974,152.43-914,792.46

Finding the Fourth Proportional to 1,431,721.50, 1,974,152.43 and 914,792.46

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Solution

The fourth proportional to 1,431,721.50, 1,974,152.43 and 914,792.46 is: 1,261,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,721.50 : 1,974,152.43 = 914,792.46 : x
  2. Step 2: Convert to fraction form
    1,431,721.50/1,974,152.43 = 914,792.46/x
  3. Step 3: Cross multiply
    1,431,721.50x = 1,974,152.43 × 914,792.46
  4. Step 4: Simplify right side
    1,431,721.50x = 1,805,939,757,854.68
  5. Step 5: Solve for x
    x = 1,805,939,757,854.68/1,431,721.50
  6. Step 6: Final answer
    x = 1,261,376.43

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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.