Home / 639,962.27-959,998.53-166,648.49

Finding the Fourth Proportional to 639,962.27, 959,998.53 and 166,648.49

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Solution

The fourth proportional to 639,962.27, 959,998.53 and 166,648.49 is: 249,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,962.27 : 959,998.53 = 166,648.49 : x
  2. Step 2: Convert to fraction form
    639,962.27/959,998.53 = 166,648.49/x
  3. Step 3: Cross multiply
    639,962.27x = 959,998.53 × 166,648.49
  4. Step 4: Simplify right side
    639,962.27x = 159,982,305,426.72
  5. Step 5: Solve for x
    x = 159,982,305,426.72/639,962.27
  6. Step 6: Final answer
    x = 249,987.09

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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.