Home / 1,338,465.09-2,007,802.89-378,905.18

Finding the Fourth Proportional to 1,338,465.09, 2,007,802.89 and 378,905.18

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Solution

The fourth proportional to 1,338,465.09, 2,007,802.89 and 378,905.18 is: 568,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,465.09 : 2,007,802.89 = 378,905.18 : x
  2. Step 2: Convert to fraction form
    1,338,465.09/2,007,802.89 = 378,905.18/x
  3. Step 3: Cross multiply
    1,338,465.09x = 2,007,802.89 × 378,905.18
  4. Step 4: Simplify right side
    1,338,465.09x = 760,766,905,400.96
  5. Step 5: Solve for x
    x = 760,766,905,400.96/1,338,465.09
  6. Step 6: Final answer
    x = 568,387.56

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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.