Home / 1,564,357.38-2,158,843.83-1,020,840.90

Finding the Fourth Proportional to 1,564,357.38, 2,158,843.83 and 1,020,840.90

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Solution

The fourth proportional to 1,564,357.38, 2,158,843.83 and 1,020,840.90 is: 1,408,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,357.38 : 2,158,843.83 = 1,020,840.90 : x
  2. Step 2: Convert to fraction form
    1,564,357.38/2,158,843.83 = 1,020,840.90/x
  3. Step 3: Cross multiply
    1,564,357.38x = 2,158,843.83 × 1,020,840.90
  4. Step 4: Simplify right side
    1,564,357.38x = 2,203,836,078,376.65
  5. Step 5: Solve for x
    x = 2,203,836,078,376.65/1,564,357.38
  6. Step 6: Final answer
    x = 1,408,780.44

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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.