Home / 1,542,049.79-2,128,994.70-990,988.97

Finding the Fourth Proportional to 1,542,049.79, 2,128,994.70 and 990,988.97

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Solution

The fourth proportional to 1,542,049.79, 2,128,994.70 and 990,988.97 is: 1,368,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,049.79 : 2,128,994.70 = 990,988.97 : x
  2. Step 2: Convert to fraction form
    1,542,049.79/2,128,994.70 = 990,988.97/x
  3. Step 3: Cross multiply
    1,542,049.79x = 2,128,994.70 × 990,988.97
  4. Step 4: Simplify right side
    1,542,049.79x = 2,109,810,264,888.46
  5. Step 5: Solve for x
    x = 2,109,810,264,888.46/1,542,049.79
  6. Step 6: Final answer
    x = 1,368,185.57

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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.