Home / 1,255,026.87-1,731,870.63-711,169.16

Finding the Fourth Proportional to 1,255,026.87, 1,731,870.63 and 711,169.16

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Solution

The fourth proportional to 1,255,026.87, 1,731,870.63 and 711,169.16 is: 981,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,026.87 : 1,731,870.63 = 711,169.16 : x
  2. Step 2: Convert to fraction form
    1,255,026.87/1,731,870.63 = 711,169.16/x
  3. Step 3: Cross multiply
    1,255,026.87x = 1,731,870.63 × 711,169.16
  4. Step 4: Simplify right side
    1,255,026.87x = 1,231,652,972,506.42
  5. Step 5: Solve for x
    x = 1,231,652,972,506.42/1,255,026.87
  6. Step 6: Final answer
    x = 981,375.78

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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.