Home / 988,015.64-1,363,443.78-558,286.52

Finding the Fourth Proportional to 988,015.64, 1,363,443.78 and 558,286.52

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Solution

The fourth proportional to 988,015.64, 1,363,443.78 and 558,286.52 is: 770,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,015.64 : 1,363,443.78 = 558,286.52 : x
  2. Step 2: Convert to fraction form
    988,015.64/1,363,443.78 = 558,286.52/x
  3. Step 3: Cross multiply
    988,015.64x = 1,363,443.78 × 558,286.52
  4. Step 4: Simplify right side
    988,015.64x = 761,192,283,151.85
  5. Step 5: Solve for x
    x = 761,192,283,151.85/988,015.64
  6. Step 6: Final answer
    x = 770,425.34

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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.