Home / 1,008,357.45-1,511,207.78-740,863.05

Finding the Fourth Proportional to 1,008,357.45, 1,511,207.78 and 740,863.05

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Solution

The fourth proportional to 1,008,357.45, 1,511,207.78 and 740,863.05 is: 1,110,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,357.45 : 1,511,207.78 = 740,863.05 : x
  2. Step 2: Convert to fraction form
    1,008,357.45/1,511,207.78 = 740,863.05/x
  3. Step 3: Cross multiply
    1,008,357.45x = 1,511,207.78 × 740,863.05
  4. Step 4: Simplify right side
    1,008,357.45x = 1,119,598,001,370.21
  5. Step 5: Solve for x
    x = 1,119,598,001,370.21/1,008,357.45
  6. Step 6: Final answer
    x = 1,110,318.57

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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.