Home / 2,718,935.20-4,078,273.20-921,642.40

Finding the Fourth Proportional to 2,718,935.20, 4,078,273.20 and 921,642.40

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Solution

The fourth proportional to 2,718,935.20, 4,078,273.20 and 921,642.40 is: 1,382,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718,935.20 : 4,078,273.20 = 921,642.40 : x
  2. Step 2: Convert to fraction form
    2,718,935.20/4,078,273.20 = 921,642.40/x
  3. Step 3: Cross multiply
    2,718,935.20x = 4,078,273.20 × 921,642.40
  4. Step 4: Simplify right side
    2,718,935.20x = 3,758,709,499,903.68
  5. Step 5: Solve for x
    x = 3,758,709,499,903.68/2,718,935.20
  6. Step 6: Final answer
    x = 1,382,419.67

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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.