Home / 1,397,361.88-1,928,074.34-816,472.70

Finding the Fourth Proportional to 1,397,361.88, 1,928,074.34 and 816,472.70

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Solution

The fourth proportional to 1,397,361.88, 1,928,074.34 and 816,472.70 is: 1,126,565.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,361.88 : 1,928,074.34 = 816,472.70 : x
  2. Step 2: Convert to fraction form
    1,397,361.88/1,928,074.34 = 816,472.70/x
  3. Step 3: Cross multiply
    1,397,361.88x = 1,928,074.34 × 816,472.70
  4. Step 4: Simplify right side
    1,397,361.88x = 1,574,220,061,811.61
  5. Step 5: Solve for x
    x = 1,574,220,061,811.61/1,397,361.88
  6. Step 6: Final answer
    x = 1,126,565.77

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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.