Home / 806,442.81-1,112,891.01-438,922.58

Finding the Fourth Proportional to 806,442.81, 1,112,891.01 and 438,922.58

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Solution

The fourth proportional to 806,442.81, 1,112,891.01 and 438,922.58 is: 605,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,442.81 : 1,112,891.01 = 438,922.58 : x
  2. Step 2: Convert to fraction form
    806,442.81/1,112,891.01 = 438,922.58/x
  3. Step 3: Cross multiply
    806,442.81x = 1,112,891.01 × 438,922.58
  4. Step 4: Simplify right side
    806,442.81x = 488,472,993,368.01
  5. Step 5: Solve for x
    x = 488,472,993,368.01/806,442.81
  6. Step 6: Final answer
    x = 605,713.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.