Home / 909,712.80-1,362,600.90-488,496.60

Finding the Fourth Proportional to 909,712.80, 1,362,600.90 and 488,496.60

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Solution

The fourth proportional to 909,712.80, 1,362,600.90 and 488,496.60 is: 731,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,712.80 : 1,362,600.90 = 488,496.60 : x
  2. Step 2: Convert to fraction form
    909,712.80/1,362,600.90 = 488,496.60/x
  3. Step 3: Cross multiply
    909,712.80x = 1,362,600.90 × 488,496.60
  4. Step 4: Simplify right side
    909,712.80x = 665,625,906,806.94
  5. Step 5: Solve for x
    x = 665,625,906,806.94/909,712.80
  6. Step 6: Final answer
    x = 731,687.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.