Home / 781,943.76-1,173,012.21-276,400.53

Finding the Fourth Proportional to 781,943.76, 1,173,012.21 and 276,400.53

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Solution

The fourth proportional to 781,943.76, 1,173,012.21 and 276,400.53 is: 414,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,943.76 : 1,173,012.21 = 276,400.53 : x
  2. Step 2: Convert to fraction form
    781,943.76/1,173,012.21 = 276,400.53/x
  3. Step 3: Cross multiply
    781,943.76x = 1,173,012.21 × 276,400.53
  4. Step 4: Simplify right side
    781,943.76x = 324,221,196,540.47
  5. Step 5: Solve for x
    x = 324,221,196,540.47/781,943.76
  6. Step 6: Final answer
    x = 414,634.93

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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.