Home / 1,242,185.70-1,860,982.20-708,120.30

Finding the Fourth Proportional to 1,242,185.70, 1,860,982.20 and 708,120.30

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Solution

The fourth proportional to 1,242,185.70, 1,860,982.20 and 708,120.30 is: 1,060,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,185.70 : 1,860,982.20 = 708,120.30 : x
  2. Step 2: Convert to fraction form
    1,242,185.70/1,860,982.20 = 708,120.30/x
  3. Step 3: Cross multiply
    1,242,185.70x = 1,860,982.20 × 708,120.30
  4. Step 4: Simplify right side
    1,242,185.70x = 1,317,799,273,758.66
  5. Step 5: Solve for x
    x = 1,317,799,273,758.66/1,242,185.70
  6. Step 6: Final answer
    x = 1,060,871.39

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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.