Home / 1,515,212.19-2,091,036.91-826,928.32

Finding the Fourth Proportional to 1,515,212.19, 2,091,036.91 and 826,928.32

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Solution

The fourth proportional to 1,515,212.19, 2,091,036.91 and 826,928.32 is: 1,141,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,212.19 : 2,091,036.91 = 826,928.32 : x
  2. Step 2: Convert to fraction form
    1,515,212.19/2,091,036.91 = 826,928.32/x
  3. Step 3: Cross multiply
    1,515,212.19x = 2,091,036.91 × 826,928.32
  4. Step 4: Simplify right side
    1,515,212.19x = 1,729,137,630,176.61
  5. Step 5: Solve for x
    x = 1,729,137,630,176.61/1,515,212.19
  6. Step 6: Final answer
    x = 1,141,185.14

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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.