Home / 1,110,612.30-1,665,918.45-311,919.90

Finding the Fourth Proportional to 1,110,612.30, 1,665,918.45 and 311,919.90

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Solution

The fourth proportional to 1,110,612.30, 1,665,918.45 and 311,919.90 is: 467,879.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,612.30 : 1,665,918.45 = 311,919.90 : x
  2. Step 2: Convert to fraction form
    1,110,612.30/1,665,918.45 = 311,919.90/x
  3. Step 3: Cross multiply
    1,110,612.30x = 1,665,918.45 × 311,919.90
  4. Step 4: Simplify right side
    1,110,612.30x = 519,633,116,332.16
  5. Step 5: Solve for x
    x = 519,633,116,332.16/1,110,612.30
  6. Step 6: Final answer
    x = 467,879.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.