Home / 1,242,185.22-1,863,278.27-389,323.06

Finding the Fourth Proportional to 1,242,185.22, 1,863,278.27 and 389,323.06

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Solution

The fourth proportional to 1,242,185.22, 1,863,278.27 and 389,323.06 is: 583,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,185.22 : 1,863,278.27 = 389,323.06 : x
  2. Step 2: Convert to fraction form
    1,242,185.22/1,863,278.27 = 389,323.06/x
  3. Step 3: Cross multiply
    1,242,185.22x = 1,863,278.27 × 389,323.06
  4. Step 4: Simplify right side
    1,242,185.22x = 725,417,192,563.06
  5. Step 5: Solve for x
    x = 725,417,192,563.06/1,242,185.22
  6. Step 6: Final answer
    x = 583,984.72

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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.