Home / 1,198,764.40-1,798,266.86-345,857.17

Finding the Fourth Proportional to 1,198,764.40, 1,798,266.86 and 345,857.17

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Solution

The fourth proportional to 1,198,764.40, 1,798,266.86 and 345,857.17 is: 518,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,764.40 : 1,798,266.86 = 345,857.17 : x
  2. Step 2: Convert to fraction form
    1,198,764.40/1,798,266.86 = 345,857.17/x
  3. Step 3: Cross multiply
    1,198,764.40x = 1,798,266.86 × 345,857.17
  4. Step 4: Simplify right side
    1,198,764.40x = 621,943,487,104.39
  5. Step 5: Solve for x
    x = 621,943,487,104.39/1,198,764.40
  6. Step 6: Final answer
    x = 518,820.45

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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.