Home / 1,338,487.52-2,007,731.20-391,858.24

Finding the Fourth Proportional to 1,338,487.52, 2,007,731.20 and 391,858.24

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Solution

The fourth proportional to 1,338,487.52, 2,007,731.20 and 391,858.24 is: 587,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,487.52 : 2,007,731.20 = 391,858.24 : x
  2. Step 2: Convert to fraction form
    1,338,487.52/2,007,731.20 = 391,858.24/x
  3. Step 3: Cross multiply
    1,338,487.52x = 2,007,731.20 × 391,858.24
  4. Step 4: Simplify right side
    1,338,487.52x = 786,746,014,425.09
  5. Step 5: Solve for x
    x = 786,746,014,425.09/1,338,487.52
  6. Step 6: Final answer
    x = 587,787.34

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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.