Home / 1,155,228.20-1,732,958.10-396,969.80

Finding the Fourth Proportional to 1,155,228.20, 1,732,958.10 and 396,969.80

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Solution

The fourth proportional to 1,155,228.20, 1,732,958.10 and 396,969.80 is: 595,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,228.20 : 1,732,958.10 = 396,969.80 : x
  2. Step 2: Convert to fraction form
    1,155,228.20/1,732,958.10 = 396,969.80/x
  3. Step 3: Cross multiply
    1,155,228.20x = 1,732,958.10 × 396,969.80
  4. Step 4: Simplify right side
    1,155,228.20x = 687,932,030,365.38
  5. Step 5: Solve for x
    x = 687,932,030,365.38/1,155,228.20
  6. Step 6: Final answer
    x = 595,494.49

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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.