Home / 420,409.32-580,177.18-229,434.99

Finding the Fourth Proportional to 420,409.32, 580,177.18 and 229,434.99

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Solution

The fourth proportional to 420,409.32, 580,177.18 and 229,434.99 is: 316,627.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,409.32 : 580,177.18 = 229,434.99 : x
  2. Step 2: Convert to fraction form
    420,409.32/580,177.18 = 229,434.99/x
  3. Step 3: Cross multiply
    420,409.32x = 580,177.18 × 229,434.99
  4. Step 4: Simplify right side
    420,409.32x = 133,112,945,491.53
  5. Step 5: Solve for x
    x = 133,112,945,491.53/420,409.32
  6. Step 6: Final answer
    x = 316,627.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.