Home / 420,291.92-580,002.06-229,305.44

Finding the Fourth Proportional to 420,291.92, 580,002.06 and 229,305.44

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Solution

The fourth proportional to 420,291.92, 580,002.06 and 229,305.44 is: 316,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,291.92 : 580,002.06 = 229,305.44 : x
  2. Step 2: Convert to fraction form
    420,291.92/580,002.06 = 229,305.44/x
  3. Step 3: Cross multiply
    420,291.92x = 580,002.06 × 229,305.44
  4. Step 4: Simplify right side
    420,291.92x = 132,997,627,569.21
  5. Step 5: Solve for x
    x = 132,997,627,569.21/420,291.92
  6. Step 6: Final answer
    x = 316,441.08

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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.