Home / 1,287,904.40-1,932,202.20-1,148,627.60

Finding the Fourth Proportional to 1,287,904.40, 1,932,202.20 and 1,148,627.60

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Solution

The fourth proportional to 1,287,904.40, 1,932,202.20 and 1,148,627.60 is: 1,723,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,904.40 : 1,932,202.20 = 1,148,627.60 : x
  2. Step 2: Convert to fraction form
    1,287,904.40/1,932,202.20 = 1,148,627.60/x
  3. Step 3: Cross multiply
    1,287,904.40x = 1,932,202.20 × 1,148,627.60
  4. Step 4: Simplify right side
    1,287,904.40x = 2,219,380,775,700.72
  5. Step 5: Solve for x
    x = 2,219,380,775,700.72/1,287,904.40
  6. Step 6: Final answer
    x = 1,723,249.63

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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.