Home / 1,009,937.20-1,394,218.38-628,087

Finding the Fourth Proportional to 1,009,937.20, 1,394,218.38 and 628,087

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Solution

The fourth proportional to 1,009,937.20, 1,394,218.38 and 628,087 is: 867,074.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,937.20 : 1,394,218.38 = 628,087 : x
  2. Step 2: Convert to fraction form
    1,009,937.20/1,394,218.38 = 628,087/x
  3. Step 3: Cross multiply
    1,009,937.20x = 1,394,218.38 × 628,087
  4. Step 4: Simplify right side
    1,009,937.20x = 875,690,439,639.06
  5. Step 5: Solve for x
    x = 875,690,439,639.06/1,009,937.20
  6. Step 6: Final answer
    x = 867,074.15

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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.