Home / 1,515,994.78-2,271,422.67-915,694.78

Finding the Fourth Proportional to 1,515,994.78, 2,271,422.67 and 915,694.78

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Solution

The fourth proportional to 1,515,994.78, 2,271,422.67 and 915,694.78 is: 1,371,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,994.78 : 2,271,422.67 = 915,694.78 : x
  2. Step 2: Convert to fraction form
    1,515,994.78/2,271,422.67 = 915,694.78/x
  3. Step 3: Cross multiply
    1,515,994.78x = 2,271,422.67 × 915,694.78
  4. Step 4: Simplify right side
    1,515,994.78x = 2,079,929,882,092.66
  5. Step 5: Solve for x
    x = 2,079,929,882,092.66/1,515,994.78
  6. Step 6: Final answer
    x = 1,371,990.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.