Home / 1,338,268.96-2,005,876.32-539,038.72

Finding the Fourth Proportional to 1,338,268.96, 2,005,876.32 and 539,038.72

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Solution

The fourth proportional to 1,338,268.96, 2,005,876.32 and 539,038.72 is: 807,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,268.96 : 2,005,876.32 = 539,038.72 : x
  2. Step 2: Convert to fraction form
    1,338,268.96/2,005,876.32 = 539,038.72/x
  3. Step 3: Cross multiply
    1,338,268.96x = 2,005,876.32 × 539,038.72
  4. Step 4: Simplify right side
    1,338,268.96x = 1,081,245,004,011.11
  5. Step 5: Solve for x
    x = 1,081,245,004,011.11/1,338,268.96
  6. Step 6: Final answer
    x = 807,942.97

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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.