Home / 543,904.96-815,854.02-211,480.96

Finding the Fourth Proportional to 543,904.96, 815,854.02 and 211,480.96

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Solution

The fourth proportional to 543,904.96, 815,854.02 and 211,480.96 is: 317,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,904.96 : 815,854.02 = 211,480.96 : x
  2. Step 2: Convert to fraction form
    543,904.96/815,854.02 = 211,480.96/x
  3. Step 3: Cross multiply
    543,904.96x = 815,854.02 × 211,480.96
  4. Step 4: Simplify right side
    543,904.96x = 172,537,591,369.46
  5. Step 5: Solve for x
    x = 172,537,591,369.46/543,904.96
  6. Step 6: Final answer
    x = 317,220.11

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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.