Home / 1,381,506.68-1,906,437.10-769,659.16

Finding the Fourth Proportional to 1,381,506.68, 1,906,437.10 and 769,659.16

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Solution

The fourth proportional to 1,381,506.68, 1,906,437.10 and 769,659.16 is: 1,062,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,506.68 : 1,906,437.10 = 769,659.16 : x
  2. Step 2: Convert to fraction form
    1,381,506.68/1,906,437.10 = 769,659.16/x
  3. Step 3: Cross multiply
    1,381,506.68x = 1,906,437.10 × 769,659.16
  4. Step 4: Simplify right side
    1,381,506.68x = 1,467,306,776,978.84
  5. Step 5: Solve for x
    x = 1,467,306,776,978.84/1,381,506.68
  6. Step 6: Final answer
    x = 1,062,106.18

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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.