Home / 1,515,210.45-2,091,034.49-826,926.57

Finding the Fourth Proportional to 1,515,210.45, 2,091,034.49 and 826,926.57

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Solution

The fourth proportional to 1,515,210.45, 2,091,034.49 and 826,926.57 is: 1,141,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,210.45 : 2,091,034.49 = 826,926.57 : x
  2. Step 2: Convert to fraction form
    1,515,210.45/2,091,034.49 = 826,926.57/x
  3. Step 3: Cross multiply
    1,515,210.45x = 2,091,034.49 × 826,926.57
  4. Step 4: Simplify right side
    1,515,210.45x = 1,729,131,978,567.40
  5. Step 5: Solve for x
    x = 1,729,131,978,567.40/1,515,210.45
  6. Step 6: Final answer
    x = 1,141,182.72

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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.