Home / 1,993,715.76-2,990,428.55-779,064.87

Finding the Fourth Proportional to 1,993,715.76, 2,990,428.55 and 779,064.87

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Solution

The fourth proportional to 1,993,715.76, 2,990,428.55 and 779,064.87 is: 1,168,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,715.76 : 2,990,428.55 = 779,064.87 : x
  2. Step 2: Convert to fraction form
    1,993,715.76/2,990,428.55 = 779,064.87/x
  3. Step 3: Cross multiply
    1,993,715.76x = 2,990,428.55 × 779,064.87
  4. Step 4: Simplify right side
    1,993,715.76x = 2,329,737,829,550.04
  5. Step 5: Solve for x
    x = 2,329,737,829,550.04/1,993,715.76
  6. Step 6: Final answer
    x = 1,168,540.61

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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.