Home / 1,008,412.65-1,512,618.98-780,089.85

Finding the Fourth Proportional to 1,008,412.65, 1,512,618.98 and 780,089.85

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Solution

The fourth proportional to 1,008,412.65, 1,512,618.98 and 780,089.85 is: 1,170,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,412.65 : 1,512,618.98 = 780,089.85 : x
  2. Step 2: Convert to fraction form
    1,008,412.65/1,512,618.98 = 780,089.85/x
  3. Step 3: Cross multiply
    1,008,412.65x = 1,512,618.98 × 780,089.85
  4. Step 4: Simplify right side
    1,008,412.65x = 1,179,978,709,314.90
  5. Step 5: Solve for x
    x = 1,179,978,709,314.90/1,008,412.65
  6. Step 6: Final answer
    x = 1,170,134.78

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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.