Home / 818,981.45-1,130,144.66-451,442.48

Finding the Fourth Proportional to 818,981.45, 1,130,144.66 and 451,442.48

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Solution

The fourth proportional to 818,981.45, 1,130,144.66 and 451,442.48 is: 622,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,981.45 : 1,130,144.66 = 451,442.48 : x
  2. Step 2: Convert to fraction form
    818,981.45/1,130,144.66 = 451,442.48/x
  3. Step 3: Cross multiply
    818,981.45x = 1,130,144.66 × 451,442.48
  4. Step 4: Simplify right side
    818,981.45x = 510,195,305,243.80
  5. Step 5: Solve for x
    x = 510,195,305,243.80/818,981.45
  6. Step 6: Final answer
    x = 622,963.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.