Home / 726,257.52-1,089,386.38-193,780.52

Finding the Fourth Proportional to 726,257.52, 1,089,386.38 and 193,780.52

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Solution

The fourth proportional to 726,257.52, 1,089,386.38 and 193,780.52 is: 290,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,257.52 : 1,089,386.38 = 193,780.52 : x
  2. Step 2: Convert to fraction form
    726,257.52/1,089,386.38 = 193,780.52/x
  3. Step 3: Cross multiply
    726,257.52x = 1,089,386.38 × 193,780.52
  4. Step 4: Simplify right side
    726,257.52x = 211,101,859,197.32
  5. Step 5: Solve for x
    x = 211,101,859,197.32/726,257.52
  6. Step 6: Final answer
    x = 290,670.81

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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.