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Finding the Fourth Proportional to 893,659.80, 1,339,462.04 and 412,877.58

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Solution

The fourth proportional to 893,659.80, 1,339,462.04 and 412,877.58 is: 618,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,659.80 : 1,339,462.04 = 412,877.58 : x
  2. Step 2: Convert to fraction form
    893,659.80/1,339,462.04 = 412,877.58/x
  3. Step 3: Cross multiply
    893,659.80x = 1,339,462.04 × 412,877.58
  4. Step 4: Simplify right side
    893,659.80x = 553,033,843,512.68
  5. Step 5: Solve for x
    x = 553,033,843,512.68/893,659.80
  6. Step 6: Final answer
    x = 618,841.58

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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.