Home / 1,515,291.40-2,091,114.60-826,968.88

Finding the Fourth Proportional to 1,515,291.40, 2,091,114.60 and 826,968.88

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Solution

The fourth proportional to 1,515,291.40, 2,091,114.60 and 826,968.88 is: 1,141,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,291.40 : 2,091,114.60 = 826,968.88 : x
  2. Step 2: Convert to fraction form
    1,515,291.40/2,091,114.60 = 826,968.88/x
  3. Step 3: Cross multiply
    1,515,291.40x = 2,091,114.60 × 826,968.88
  4. Step 4: Simplify right side
    1,515,291.40x = 1,729,286,698,713.65
  5. Step 5: Solve for x
    x = 1,729,286,698,713.65/1,515,291.40
  6. Step 6: Final answer
    x = 1,141,223.86

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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.