Home / 988,388.60-1,363,999.92-558,670.38

Finding the Fourth Proportional to 988,388.60, 1,363,999.92 and 558,670.38

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Solution

The fourth proportional to 988,388.60, 1,363,999.92 and 558,670.38 is: 770,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,388.60 : 1,363,999.92 = 558,670.38 : x
  2. Step 2: Convert to fraction form
    988,388.60/1,363,999.92 = 558,670.38/x
  3. Step 3: Cross multiply
    988,388.60x = 1,363,999.92 × 558,670.38
  4. Step 4: Simplify right side
    988,388.60x = 762,026,353,626.37
  5. Step 5: Solve for x
    x = 762,026,353,626.37/988,388.60
  6. Step 6: Final answer
    x = 770,978.49

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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.