Home / 420,260.34-579,960.63-229,277.73

Finding the Fourth Proportional to 420,260.34, 579,960.63 and 229,277.73

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Solution

The fourth proportional to 420,260.34, 579,960.63 and 229,277.73 is: 316,404.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,260.34 : 579,960.63 = 229,277.73 : x
  2. Step 2: Convert to fraction form
    420,260.34/579,960.63 = 229,277.73/x
  3. Step 3: Cross multiply
    420,260.34x = 579,960.63 × 229,277.73
  4. Step 4: Simplify right side
    420,260.34x = 132,972,056,735.77
  5. Step 5: Solve for x
    x = 132,972,056,735.77/420,260.34
  6. Step 6: Final answer
    x = 316,404.01

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1.5x scale

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.