Home / 1,242,638.46-1,863,962.55-378,081.93

Finding the Fourth Proportional to 1,242,638.46, 1,863,962.55 and 378,081.93

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Solution

The fourth proportional to 1,242,638.46, 1,863,962.55 and 378,081.93 is: 567,124.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,638.46 : 1,863,962.55 = 378,081.93 : x
  2. Step 2: Convert to fraction form
    1,242,638.46/1,863,962.55 = 378,081.93/x
  3. Step 3: Cross multiply
    1,242,638.46x = 1,863,962.55 × 378,081.93
  4. Step 4: Simplify right side
    1,242,638.46x = 704,730,558,351.72
  5. Step 5: Solve for x
    x = 704,730,558,351.72/1,242,638.46
  6. Step 6: Final answer
    x = 567,124.37

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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.