Home / 1,242,181.67-1,863,272.93-389,319.48

Finding the Fourth Proportional to 1,242,181.67, 1,863,272.93 and 389,319.48

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Solution

The fourth proportional to 1,242,181.67, 1,863,272.93 and 389,319.48 is: 583,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,181.67 : 1,863,272.93 = 389,319.48 : x
  2. Step 2: Convert to fraction form
    1,242,181.67/1,863,272.93 = 389,319.48/x
  3. Step 3: Cross multiply
    1,242,181.67x = 1,863,272.93 × 389,319.48
  4. Step 4: Simplify right side
    1,242,181.67x = 725,408,446,259.08
  5. Step 5: Solve for x
    x = 725,408,446,259.08/1,242,181.67
  6. Step 6: Final answer
    x = 583,979.35

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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.