Home / 763,778.70-1,145,833.29-290,473.02

Finding the Fourth Proportional to 763,778.70, 1,145,833.29 and 290,473.02

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Solution

The fourth proportional to 763,778.70, 1,145,833.29 and 290,473.02 is: 435,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,778.70 : 1,145,833.29 = 290,473.02 : x
  2. Step 2: Convert to fraction form
    763,778.70/1,145,833.29 = 290,473.02/x
  3. Step 3: Cross multiply
    763,778.70x = 1,145,833.29 × 290,473.02
  4. Step 4: Simplify right side
    763,778.70x = 332,833,656,162.84
  5. Step 5: Solve for x
    x = 332,833,656,162.84/763,778.70
  6. Step 6: Final answer
    x = 435,772.37

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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.