Home / 731,027.92-1,008,509.62-489,388.34

Finding the Fourth Proportional to 731,027.92, 1,008,509.62 and 489,388.34

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Solution

The fourth proportional to 731,027.92, 1,008,509.62 and 489,388.34 is: 675,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,027.92 : 1,008,509.62 = 489,388.34 : x
  2. Step 2: Convert to fraction form
    731,027.92/1,008,509.62 = 489,388.34/x
  3. Step 3: Cross multiply
    731,027.92x = 1,008,509.62 × 489,388.34
  4. Step 4: Simplify right side
    731,027.92x = 493,552,841,316.34
  5. Step 5: Solve for x
    x = 493,552,841,316.34/731,027.92
  6. Step 6: Final answer
    x = 675,149.10

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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.