Home / 2,131,278.80-3,191,669.40-1,008,035.60

Finding the Fourth Proportional to 2,131,278.80, 3,191,669.40 and 1,008,035.60

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Solution

The fourth proportional to 2,131,278.80, 3,191,669.40 and 1,008,035.60 is: 1,509,570.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,278.80 : 3,191,669.40 = 1,008,035.60 : x
  2. Step 2: Convert to fraction form
    2,131,278.80/3,191,669.40 = 1,008,035.60/x
  3. Step 3: Cross multiply
    2,131,278.80x = 3,191,669.40 × 1,008,035.60
  4. Step 4: Simplify right side
    2,131,278.80x = 3,217,316,378,630.64
  5. Step 5: Solve for x
    x = 3,217,316,378,630.64/2,131,278.80
  6. Step 6: Final answer
    x = 1,509,570.86

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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.