Home / 1,691,038.80-2,332,397.16-1,079,611.92

Finding the Fourth Proportional to 1,691,038.80, 2,332,397.16 and 1,079,611.92

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Solution

The fourth proportional to 1,691,038.80, 2,332,397.16 and 1,079,611.92 is: 1,489,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,038.80 : 2,332,397.16 = 1,079,611.92 : x
  2. Step 2: Convert to fraction form
    1,691,038.80/2,332,397.16 = 1,079,611.92/x
  3. Step 3: Cross multiply
    1,691,038.80x = 2,332,397.16 × 1,079,611.92
  4. Step 4: Simplify right side
    1,691,038.80x = 2,518,083,776,110.15
  5. Step 5: Solve for x
    x = 2,518,083,776,110.15/1,691,038.80
  6. Step 6: Final answer
    x = 1,489,075.10

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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.