Home / 1,009,238.81-1,392,783.19-550,378.49

Finding the Fourth Proportional to 1,009,238.81, 1,392,783.19 and 550,378.49

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Solution

The fourth proportional to 1,009,238.81, 1,392,783.19 and 550,378.49 is: 759,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,238.81 : 1,392,783.19 = 550,378.49 : x
  2. Step 2: Convert to fraction form
    1,009,238.81/1,392,783.19 = 550,378.49/x
  3. Step 3: Cross multiply
    1,009,238.81x = 1,392,783.19 × 550,378.49
  4. Step 4: Simplify right side
    1,009,238.81x = 766,557,900,669.72
  5. Step 5: Solve for x
    x = 766,557,900,669.72/1,009,238.81
  6. Step 6: Final answer
    x = 759,540.65

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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.