Home / 605,318.40-834,939.36-378,570.24

Finding the Fourth Proportional to 605,318.40, 834,939.36 and 378,570.24

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Solution

The fourth proportional to 605,318.40, 834,939.36 and 378,570.24 is: 522,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,318.40 : 834,939.36 = 378,570.24 : x
  2. Step 2: Convert to fraction form
    605,318.40/834,939.36 = 378,570.24/x
  3. Step 3: Cross multiply
    605,318.40x = 834,939.36 × 378,570.24
  4. Step 4: Simplify right side
    605,318.40x = 316,083,193,900.65
  5. Step 5: Solve for x
    x = 316,083,193,900.65/605,318.40
  6. Step 6: Final answer
    x = 522,176.75

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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.