Home / 749,458.20-1,120,906.80-670,070.10

Finding the Fourth Proportional to 749,458.20, 1,120,906.80 and 670,070.10

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Solution

The fourth proportional to 749,458.20, 1,120,906.80 and 670,070.10 is: 1,002,172.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,458.20 : 1,120,906.80 = 670,070.10 : x
  2. Step 2: Convert to fraction form
    749,458.20/1,120,906.80 = 670,070.10/x
  3. Step 3: Cross multiply
    749,458.20x = 1,120,906.80 × 670,070.10
  4. Step 4: Simplify right side
    749,458.20x = 751,086,131,566.68
  5. Step 5: Solve for x
    x = 751,086,131,566.68/749,458.20
  6. Step 6: Final answer
    x = 1,002,172.14

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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.