Home / 1,307,210.78-1,961,131.41-454,158.28

Finding the Fourth Proportional to 1,307,210.78, 1,961,131.41 and 454,158.28

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Solution

The fourth proportional to 1,307,210.78, 1,961,131.41 and 454,158.28 is: 681,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,210.78 : 1,961,131.41 = 454,158.28 : x
  2. Step 2: Convert to fraction form
    1,307,210.78/1,961,131.41 = 454,158.28/x
  3. Step 3: Cross multiply
    1,307,210.78x = 1,961,131.41 × 454,158.28
  4. Step 4: Simplify right side
    1,307,210.78x = 890,664,068,019.58
  5. Step 5: Solve for x
    x = 890,664,068,019.58/1,307,210.78
  6. Step 6: Final answer
    x = 681,346.94

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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.