Home / 1,218,766.60-1,680,145.14-855,063.64

Finding the Fourth Proportional to 1,218,766.60, 1,680,145.14 and 855,063.64

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Solution

The fourth proportional to 1,218,766.60, 1,680,145.14 and 855,063.64 is: 1,178,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,766.60 : 1,680,145.14 = 855,063.64 : x
  2. Step 2: Convert to fraction form
    1,218,766.60/1,680,145.14 = 855,063.64/x
  3. Step 3: Cross multiply
    1,218,766.60x = 1,680,145.14 × 855,063.64
  4. Step 4: Simplify right side
    1,218,766.60x = 1,436,631,019,136.71
  5. Step 5: Solve for x
    x = 1,436,631,019,136.71/1,218,766.60
  6. Step 6: Final answer
    x = 1,178,758.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.