Home / 420,927.80-580,892.86-229,944.36

Finding the Fourth Proportional to 420,927.80, 580,892.86 and 229,944.36

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Solution

The fourth proportional to 420,927.80, 580,892.86 and 229,944.36 is: 317,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,927.80 : 580,892.86 = 229,944.36 : x
  2. Step 2: Convert to fraction form
    420,927.80/580,892.86 = 229,944.36/x
  3. Step 3: Cross multiply
    420,927.80x = 580,892.86 × 229,944.36
  4. Step 4: Simplify right side
    420,927.80x = 133,573,036,921.27
  5. Step 5: Solve for x
    x = 133,573,036,921.27/420,927.80
  6. Step 6: Final answer
    x = 317,330.04

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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.