Home / 486,576.09-729,884.03-166,947.78

Finding the Fourth Proportional to 486,576.09, 729,884.03 and 166,947.78

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Solution

The fourth proportional to 486,576.09, 729,884.03 and 166,947.78 is: 250,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,576.09 : 729,884.03 = 166,947.78 : x
  2. Step 2: Convert to fraction form
    486,576.09/729,884.03 = 166,947.78/x
  3. Step 3: Cross multiply
    486,576.09x = 729,884.03 × 166,947.78
  4. Step 4: Simplify right side
    486,576.09x = 121,852,518,465.95
  5. Step 5: Solve for x
    x = 121,852,518,465.95/486,576.09
  6. Step 6: Final answer
    x = 250,428.50

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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.