Home / 1,331,431.83-1,996,950.92-489,786.75

Finding the Fourth Proportional to 1,331,431.83, 1,996,950.92 and 489,786.75

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Solution

The fourth proportional to 1,331,431.83, 1,996,950.92 and 489,786.75 is: 734,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,431.83 : 1,996,950.92 = 489,786.75 : x
  2. Step 2: Convert to fraction form
    1,331,431.83/1,996,950.92 = 489,786.75/x
  3. Step 3: Cross multiply
    1,331,431.83x = 1,996,950.92 × 489,786.75
  4. Step 4: Simplify right side
    1,331,431.83x = 978,080,098,567.38
  5. Step 5: Solve for x
    x = 978,080,098,567.38/1,331,431.83
  6. Step 6: Final answer
    x = 734,607.72

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1.5x scale

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.