Home / 457,789.23-686,552.63-137,972.07

Finding the Fourth Proportional to 457,789.23, 686,552.63 and 137,972.07

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Solution

The fourth proportional to 457,789.23, 686,552.63 and 137,972.07 is: 206,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,789.23 : 686,552.63 = 137,972.07 : x
  2. Step 2: Convert to fraction form
    457,789.23/686,552.63 = 137,972.07/x
  3. Step 3: Cross multiply
    457,789.23x = 686,552.63 × 137,972.07
  4. Step 4: Simplify right side
    457,789.23x = 94,725,086,835.18
  5. Step 5: Solve for x
    x = 94,725,086,835.18/457,789.23
  6. Step 6: Final answer
    x = 206,918.56

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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.