Home / 1,105,867.21-1,655,618.73-990,473.80

Finding the Fourth Proportional to 1,105,867.21, 1,655,618.73 and 990,473.80

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Solution

The fourth proportional to 1,105,867.21, 1,655,618.73 and 990,473.80 is: 1,482,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,867.21 : 1,655,618.73 = 990,473.80 : x
  2. Step 2: Convert to fraction form
    1,105,867.21/1,655,618.73 = 990,473.80/x
  3. Step 3: Cross multiply
    1,105,867.21x = 1,655,618.73 × 990,473.80
  4. Step 4: Simplify right side
    1,105,867.21x = 1,639,846,974,854.27
  5. Step 5: Solve for x
    x = 1,639,846,974,854.27/1,105,867.21
  6. Step 6: Final answer
    x = 1,482,860.65

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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.