Home / 465,639.03-642,757.40-272,109.58

Finding the Fourth Proportional to 465,639.03, 642,757.40 and 272,109.58

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Solution

The fourth proportional to 465,639.03, 642,757.40 and 272,109.58 is: 375,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,639.03 : 642,757.40 = 272,109.58 : x
  2. Step 2: Convert to fraction form
    465,639.03/642,757.40 = 272,109.58/x
  3. Step 3: Cross multiply
    465,639.03x = 642,757.40 × 272,109.58
  4. Step 4: Simplify right side
    465,639.03x = 174,900,444,974.17
  5. Step 5: Solve for x
    x = 174,900,444,974.17/465,639.03
  6. Step 6: Final answer
    x = 375,613.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.