Home / 1,188,160.14-1,639,747.89-678,851.58

Finding the Fourth Proportional to 1,188,160.14, 1,639,747.89 and 678,851.58

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Solution

The fourth proportional to 1,188,160.14, 1,639,747.89 and 678,851.58 is: 936,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,160.14 : 1,639,747.89 = 678,851.58 : x
  2. Step 2: Convert to fraction form
    1,188,160.14/1,639,747.89 = 678,851.58/x
  3. Step 3: Cross multiply
    1,188,160.14x = 1,639,747.89 × 678,851.58
  4. Step 4: Simplify right side
    1,188,160.14x = 1,113,145,445,928.17
  5. Step 5: Solve for x
    x = 1,113,145,445,928.17/1,188,160.14
  6. Step 6: Final answer
    x = 936,864.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.