Home / 820,666.81-1,231,035.38-252,070.55

Finding the Fourth Proportional to 820,666.81, 1,231,035.38 and 252,070.55

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Solution

The fourth proportional to 820,666.81, 1,231,035.38 and 252,070.55 is: 378,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,666.81 : 1,231,035.38 = 252,070.55 : x
  2. Step 2: Convert to fraction form
    820,666.81/1,231,035.38 = 252,070.55/x
  3. Step 3: Cross multiply
    820,666.81x = 1,231,035.38 × 252,070.55
  4. Step 4: Simplify right side
    820,666.81x = 310,307,765,306.06
  5. Step 5: Solve for x
    x = 310,307,765,306.06/820,666.81
  6. Step 6: Final answer
    x = 378,116.63

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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.