Home / 1,242,195.22-1,863,293.28-389,333.06

Finding the Fourth Proportional to 1,242,195.22, 1,863,293.28 and 389,333.06

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Solution

The fourth proportional to 1,242,195.22, 1,863,293.28 and 389,333.06 is: 583,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,195.22 : 1,863,293.28 = 389,333.06 : x
  2. Step 2: Convert to fraction form
    1,242,195.22/1,863,293.28 = 389,333.06/x
  3. Step 3: Cross multiply
    1,242,195.22x = 1,863,293.28 × 389,333.06
  4. Step 4: Simplify right side
    1,242,195.22x = 725,441,674,379.84
  5. Step 5: Solve for x
    x = 725,441,674,379.84/1,242,195.22
  6. Step 6: Final answer
    x = 583,999.73

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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.