Home / 818,940.92-1,130,140.74-474,844.28

Finding the Fourth Proportional to 818,940.92, 1,130,140.74 and 474,844.28

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Solution

The fourth proportional to 818,940.92, 1,130,140.74 and 474,844.28 is: 655,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,940.92 : 1,130,140.74 = 474,844.28 : x
  2. Step 2: Convert to fraction form
    818,940.92/1,130,140.74 = 474,844.28/x
  3. Step 3: Cross multiply
    818,940.92x = 1,130,140.74 × 474,844.28
  4. Step 4: Simplify right side
    818,940.92x = 536,640,865,983.97
  5. Step 5: Solve for x
    x = 536,640,865,983.97/818,940.92
  6. Step 6: Final answer
    x = 655,286.42

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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.