Home / 772,775.73-1,159,497.32-418,039.47

Finding the Fourth Proportional to 772,775.73, 1,159,497.32 and 418,039.47

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Solution

The fourth proportional to 772,775.73, 1,159,497.32 and 418,039.47 is: 627,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,775.73 : 1,159,497.32 = 418,039.47 : x
  2. Step 2: Convert to fraction form
    772,775.73/1,159,497.32 = 418,039.47/x
  3. Step 3: Cross multiply
    772,775.73x = 1,159,497.32 × 418,039.47
  4. Step 4: Simplify right side
    772,775.73x = 484,715,643,029.02
  5. Step 5: Solve for x
    x = 484,715,643,029.02/772,775.73
  6. Step 6: Final answer
    x = 627,239.73

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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.