Home / 386,823.88-581,125.38-274,776.76

Finding the Fourth Proportional to 386,823.88, 581,125.38 and 274,776.76

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Solution

The fourth proportional to 386,823.88, 581,125.38 and 274,776.76 is: 412,797.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,823.88 : 581,125.38 = 274,776.76 : x
  2. Step 2: Convert to fraction form
    386,823.88/581,125.38 = 274,776.76/x
  3. Step 3: Cross multiply
    386,823.88x = 581,125.38 × 274,776.76
  4. Step 4: Simplify right side
    386,823.88x = 159,679,749,070.17
  5. Step 5: Solve for x
    x = 159,679,749,070.17/386,823.88
  6. Step 6: Final answer
    x = 412,797.03

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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.