Home / 753,243.79-1,129,410.38-303,439.31

Finding the Fourth Proportional to 753,243.79, 1,129,410.38 and 303,439.31

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Solution

The fourth proportional to 753,243.79, 1,129,410.38 and 303,439.31 is: 454,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,243.79 : 1,129,410.38 = 303,439.31 : x
  2. Step 2: Convert to fraction form
    753,243.79/1,129,410.38 = 303,439.31/x
  3. Step 3: Cross multiply
    753,243.79x = 1,129,410.38 × 303,439.31
  4. Step 4: Simplify right side
    753,243.79x = 342,707,506,414.04
  5. Step 5: Solve for x
    x = 342,707,506,414.04/753,243.79
  6. Step 6: Final answer
    x = 454,975.55

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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.