Home / 420,920.03-580,847.98-229,896.51

Finding the Fourth Proportional to 420,920.03, 580,847.98 and 229,896.51

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Solution

The fourth proportional to 420,920.03, 580,847.98 and 229,896.51 is: 317,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,920.03 : 580,847.98 = 229,896.51 : x
  2. Step 2: Convert to fraction form
    420,920.03/580,847.98 = 229,896.51/x
  3. Step 3: Cross multiply
    420,920.03x = 580,847.98 × 229,896.51
  4. Step 4: Simplify right side
    420,920.03x = 133,534,923,442.55
  5. Step 5: Solve for x
    x = 133,534,923,442.55/420,920.03
  6. Step 6: Final answer
    x = 317,245.35

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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.