Home / 420,619.37-580,432.73-229,595.85

Finding the Fourth Proportional to 420,619.37, 580,432.73 and 229,595.85

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Solution

The fourth proportional to 420,619.37, 580,432.73 and 229,595.85 is: 316,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,619.37 : 580,432.73 = 229,595.85 : x
  2. Step 2: Convert to fraction form
    420,619.37/580,432.73 = 229,595.85/x
  3. Step 3: Cross multiply
    420,619.37x = 580,432.73 × 229,595.85
  4. Step 4: Simplify right side
    420,619.37x = 133,264,944,864.19
  5. Step 5: Solve for x
    x = 133,264,944,864.19/420,619.37
  6. Step 6: Final answer
    x = 316,830.26

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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.