Home / 1,646,115.38-2,271,727.49-920,919.85

Finding the Fourth Proportional to 1,646,115.38, 2,271,727.49 and 920,919.85

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Solution

The fourth proportional to 1,646,115.38, 2,271,727.49 and 920,919.85 is: 1,270,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,115.38 : 2,271,727.49 = 920,919.85 : x
  2. Step 2: Convert to fraction form
    1,646,115.38/2,271,727.49 = 920,919.85/x
  3. Step 3: Cross multiply
    1,646,115.38x = 2,271,727.49 × 920,919.85
  4. Step 4: Simplify right side
    1,646,115.38x = 2,092,078,929,047.76
  5. Step 5: Solve for x
    x = 2,092,078,929,047.76/1,646,115.38
  6. Step 6: Final answer
    x = 1,270,918.77

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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.