Home / 988,020.66-1,363,450.68-558,291.54

Finding the Fourth Proportional to 988,020.66, 1,363,450.68 and 558,291.54

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Solution

The fourth proportional to 988,020.66, 1,363,450.68 and 558,291.54 is: 770,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,020.66 : 1,363,450.68 = 558,291.54 : x
  2. Step 2: Convert to fraction form
    988,020.66/1,363,450.68 = 558,291.54/x
  3. Step 3: Cross multiply
    988,020.66x = 1,363,450.68 × 558,291.54
  4. Step 4: Simplify right side
    988,020.66x = 761,202,979,851.25
  5. Step 5: Solve for x
    x = 761,202,979,851.25/988,020.66
  6. Step 6: Final answer
    x = 770,432.25

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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.