Home / 1,754,392.68-2,421,013.86-990,517.32

Finding the Fourth Proportional to 1,754,392.68, 2,421,013.86 and 990,517.32

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Solution

The fourth proportional to 1,754,392.68, 2,421,013.86 and 990,517.32 is: 1,366,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,392.68 : 2,421,013.86 = 990,517.32 : x
  2. Step 2: Convert to fraction form
    1,754,392.68/2,421,013.86 = 990,517.32/x
  3. Step 3: Cross multiply
    1,754,392.68x = 2,421,013.86 × 990,517.32
  4. Step 4: Simplify right side
    1,754,392.68x = 2,398,056,160,290.06
  5. Step 5: Solve for x
    x = 2,398,056,160,290.06/1,754,392.68
  6. Step 6: Final answer
    x = 1,366,886.78

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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.