Home / 1,338,462.47-2,007,798.95-378,902.55

Finding the Fourth Proportional to 1,338,462.47, 2,007,798.95 and 378,902.55

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Solution

The fourth proportional to 1,338,462.47, 2,007,798.95 and 378,902.55 is: 568,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,462.47 : 2,007,798.95 = 378,902.55 : x
  2. Step 2: Convert to fraction form
    1,338,462.47/2,007,798.95 = 378,902.55/x
  3. Step 3: Cross multiply
    1,338,462.47x = 2,007,798.95 × 378,902.55
  4. Step 4: Simplify right side
    1,338,462.47x = 760,760,142,989.58
  5. Step 5: Solve for x
    x = 760,760,142,989.58/1,338,462.47
  6. Step 6: Final answer
    x = 568,383.62

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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.