Home / 3,208,126.78-4,812,190.17-1,078,210.90

Finding the Fourth Proportional to 3,208,126.78, 4,812,190.17 and 1,078,210.90

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Solution

The fourth proportional to 3,208,126.78, 4,812,190.17 and 1,078,210.90 is: 1,617,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,126.78 : 4,812,190.17 = 1,078,210.90 : x
  2. Step 2: Convert to fraction form
    3,208,126.78/4,812,190.17 = 1,078,210.90/x
  3. Step 3: Cross multiply
    3,208,126.78x = 4,812,190.17 × 1,078,210.90
  4. Step 4: Simplify right side
    3,208,126.78x = 5,188,555,894,166.85
  5. Step 5: Solve for x
    x = 5,188,555,894,166.85/3,208,126.78
  6. Step 6: Final answer
    x = 1,617,316.35

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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.