Home / 420,126.24-579,760.56-229,143.36

Finding the Fourth Proportional to 420,126.24, 579,760.56 and 229,143.36

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Solution

The fourth proportional to 420,126.24, 579,760.56 and 229,143.36 is: 316,210.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,126.24 : 579,760.56 = 229,143.36 : x
  2. Step 2: Convert to fraction form
    420,126.24/579,760.56 = 229,143.36/x
  3. Step 3: Cross multiply
    420,126.24x = 579,760.56 × 229,143.36
  4. Step 4: Simplify right side
    420,126.24x = 132,848,282,713.88
  5. Step 5: Solve for x
    x = 132,848,282,713.88/420,126.24
  6. Step 6: Final answer
    x = 316,210.39

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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.