Home / 1,110,648.40-1,665,799.80-311,851.60

Finding the Fourth Proportional to 1,110,648.40, 1,665,799.80 and 311,851.60

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Solution

The fourth proportional to 1,110,648.40, 1,665,799.80 and 311,851.60 is: 467,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,648.40 : 1,665,799.80 = 311,851.60 : x
  2. Step 2: Convert to fraction form
    1,110,648.40/1,665,799.80 = 311,851.60/x
  3. Step 3: Cross multiply
    1,110,648.40x = 1,665,799.80 × 311,851.60
  4. Step 4: Simplify right side
    1,110,648.40x = 519,482,332,909.68
  5. Step 5: Solve for x
    x = 519,482,332,909.68/1,110,648.40
  6. Step 6: Final answer
    x = 467,728.88

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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.