Home / 772,645.66-1,159,686.11-393,850.98

Finding the Fourth Proportional to 772,645.66, 1,159,686.11 and 393,850.98

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Solution

The fourth proportional to 772,645.66, 1,159,686.11 and 393,850.98 is: 591,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,645.66 : 1,159,686.11 = 393,850.98 : x
  2. Step 2: Convert to fraction form
    772,645.66/1,159,686.11 = 393,850.98/x
  3. Step 3: Cross multiply
    772,645.66x = 1,159,686.11 × 393,850.98
  4. Step 4: Simplify right side
    772,645.66x = 456,743,511,900.52
  5. Step 5: Solve for x
    x = 456,743,511,900.52/772,645.66
  6. Step 6: Final answer
    x = 591,142.28

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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.