Home / 2,628,981.47-3,628,005.36-1,421,757.47

Finding the Fourth Proportional to 2,628,981.47, 3,628,005.36 and 1,421,757.47

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Solution

The fourth proportional to 2,628,981.47, 3,628,005.36 and 1,421,757.47 is: 1,962,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,981.47 : 3,628,005.36 = 1,421,757.47 : x
  2. Step 2: Convert to fraction form
    2,628,981.47/3,628,005.36 = 1,421,757.47/x
  3. Step 3: Cross multiply
    2,628,981.47x = 3,628,005.36 × 1,421,757.47
  4. Step 4: Simplify right side
    2,628,981.47x = 5,158,143,730,850.05
  5. Step 5: Solve for x
    x = 5,158,143,730,850.05/2,628,981.47
  6. Step 6: Final answer
    x = 1,962,031.22

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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.