Home / 540,638.05-811,290.61-274,589.50

Finding the Fourth Proportional to 540,638.05, 811,290.61 and 274,589.50

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Solution

The fourth proportional to 540,638.05, 811,290.61 and 274,589.50 is: 412,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,638.05 : 811,290.61 = 274,589.50 : x
  2. Step 2: Convert to fraction form
    540,638.05/811,290.61 = 274,589.50/x
  3. Step 3: Cross multiply
    540,638.05x = 811,290.61 × 274,589.50
  4. Step 4: Simplify right side
    540,638.05x = 222,771,882,954.60
  5. Step 5: Solve for x
    x = 222,771,882,954.60/540,638.05
  6. Step 6: Final answer
    x = 412,053.65

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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.