Home / 2,718,176.34-4,074,718.02-919,800.78

Finding the Fourth Proportional to 2,718,176.34, 4,074,718.02 and 919,800.78

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Solution

The fourth proportional to 2,718,176.34, 4,074,718.02 and 919,800.78 is: 1,378,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,176.34 : 4,074,718.02 = 919,800.78 : x
  2. Step 2: Convert to fraction form
    2,718,176.34/4,074,718.02 = 919,800.78/x
  3. Step 3: Cross multiply
    2,718,176.34x = 4,074,718.02 × 919,800.78
  4. Step 4: Simplify right side
    2,718,176.34x = 3,747,928,813,076.06
  5. Step 5: Solve for x
    x = 3,747,928,813,076.06/2,718,176.34
  6. Step 6: Final answer
    x = 1,378,839.47

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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.