Home / 1,316,379.25-1,974,568.88-319,107.25

Finding the Fourth Proportional to 1,316,379.25, 1,974,568.88 and 319,107.25

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Solution

The fourth proportional to 1,316,379.25, 1,974,568.88 and 319,107.25 is: 478,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,379.25 : 1,974,568.88 = 319,107.25 : x
  2. Step 2: Convert to fraction form
    1,316,379.25/1,974,568.88 = 319,107.25/x
  3. Step 3: Cross multiply
    1,316,379.25x = 1,974,568.88 × 319,107.25
  4. Step 4: Simplify right side
    1,316,379.25x = 630,099,245,232.38
  5. Step 5: Solve for x
    x = 630,099,245,232.38/1,316,379.25
  6. Step 6: Final answer
    x = 478,660.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.