Home / 2,715,176.40-4,071,727.80-821,288.40

Finding the Fourth Proportional to 2,715,176.40, 4,071,727.80 and 821,288.40

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Solution

The fourth proportional to 2,715,176.40, 4,071,727.80 and 821,288.40 is: 1,231,618.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715,176.40 : 4,071,727.80 = 821,288.40 : x
  2. Step 2: Convert to fraction form
    2,715,176.40/4,071,727.80 = 821,288.40/x
  3. Step 3: Cross multiply
    2,715,176.40x = 4,071,727.80 × 821,288.40
  4. Step 4: Simplify right side
    2,715,176.40x = 3,344,062,810,097.52
  5. Step 5: Solve for x
    x = 3,344,062,810,097.52/2,715,176.40
  6. Step 6: Final answer
    x = 1,231,618.99

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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.