Home / 428,871.77-591,841.15-245,107.27

Finding the Fourth Proportional to 428,871.77, 591,841.15 and 245,107.27

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Solution

The fourth proportional to 428,871.77, 591,841.15 and 245,107.27 is: 338,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,871.77 : 591,841.15 = 245,107.27 : x
  2. Step 2: Convert to fraction form
    428,871.77/591,841.15 = 245,107.27/x
  3. Step 3: Cross multiply
    428,871.77x = 591,841.15 × 245,107.27
  4. Step 4: Simplify right side
    428,871.77x = 145,064,567,324.62
  5. Step 5: Solve for x
    x = 145,064,567,324.62/428,871.77
  6. Step 6: Final answer
    x = 338,246.95

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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.