Home / 989,149.62-1,365,099.75-553,610.52

Finding the Fourth Proportional to 989,149.62, 1,365,099.75 and 553,610.52

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Solution

The fourth proportional to 989,149.62, 1,365,099.75 and 553,610.52 is: 764,023.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,149.62 : 1,365,099.75 = 553,610.52 : x
  2. Step 2: Convert to fraction form
    989,149.62/1,365,099.75 = 553,610.52/x
  3. Step 3: Cross multiply
    989,149.62x = 1,365,099.75 × 553,610.52
  4. Step 4: Simplify right side
    989,149.62x = 755,733,582,449.37
  5. Step 5: Solve for x
    x = 755,733,582,449.37/989,149.62
  6. Step 6: Final answer
    x = 764,023.53

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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.