Home / 723,913.20-1,085,999.40-303,231.60

Finding the Fourth Proportional to 723,913.20, 1,085,999.40 and 303,231.60

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Solution

The fourth proportional to 723,913.20, 1,085,999.40 and 303,231.60 is: 454,901.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,913.20 : 1,085,999.40 = 303,231.60 : x
  2. Step 2: Convert to fraction form
    723,913.20/1,085,999.40 = 303,231.60/x
  3. Step 3: Cross multiply
    723,913.20x = 1,085,999.40 × 303,231.60
  4. Step 4: Simplify right side
    723,913.20x = 329,309,335,661.04
  5. Step 5: Solve for x
    x = 329,309,335,661.04/723,913.20
  6. Step 6: Final answer
    x = 454,901.69

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1.5x scale

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.