Home / 781,929.83-1,172,991.33-276,386.56

Finding the Fourth Proportional to 781,929.83, 1,172,991.33 and 276,386.56

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Solution

The fourth proportional to 781,929.83, 1,172,991.33 and 276,386.56 is: 414,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,929.83 : 1,172,991.33 = 276,386.56 : x
  2. Step 2: Convert to fraction form
    781,929.83/1,172,991.33 = 276,386.56/x
  3. Step 3: Cross multiply
    781,929.83x = 1,172,991.33 × 276,386.56
  4. Step 4: Simplify right side
    781,929.83x = 324,199,038,608.53
  5. Step 5: Solve for x
    x = 324,199,038,608.53/781,929.83
  6. Step 6: Final answer
    x = 414,613.98

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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.