Home / 720,982.90-1,081,548.47-272,081.71

Finding the Fourth Proportional to 720,982.90, 1,081,548.47 and 272,081.71

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Solution

The fourth proportional to 720,982.90, 1,081,548.47 and 272,081.71 is: 408,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,982.90 : 1,081,548.47 = 272,081.71 : x
  2. Step 2: Convert to fraction form
    720,982.90/1,081,548.47 = 272,081.71/x
  3. Step 3: Cross multiply
    720,982.90x = 1,081,548.47 × 272,081.71
  4. Step 4: Simplify right side
    720,982.90x = 294,269,557,667.16
  5. Step 5: Solve for x
    x = 294,269,557,667.16/720,982.90
  6. Step 6: Final answer
    x = 408,150.54

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1.5x scale

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.