Home / 1,338,626.10-2,008,736.98-485,764.30

Finding the Fourth Proportional to 1,338,626.10, 2,008,736.98 and 485,764.30

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Solution

The fourth proportional to 1,338,626.10, 2,008,736.98 and 485,764.30 is: 728,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,626.10 : 2,008,736.98 = 485,764.30 : x
  2. Step 2: Convert to fraction form
    1,338,626.10/2,008,736.98 = 485,764.30/x
  3. Step 3: Cross multiply
    1,338,626.10x = 2,008,736.98 × 485,764.30
  4. Step 4: Simplify right side
    1,338,626.10x = 975,772,712,973.81
  5. Step 5: Solve for x
    x = 975,772,712,973.81/1,338,626.10
  6. Step 6: Final answer
    x = 728,935.97

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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.