Home / 917,217.30-1,374,659.55-816,906.90

Finding the Fourth Proportional to 917,217.30, 1,374,659.55 and 816,906.90

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Solution

The fourth proportional to 917,217.30, 1,374,659.55 and 816,906.90 is: 1,224,321.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,217.30 : 1,374,659.55 = 816,906.90 : x
  2. Step 2: Convert to fraction form
    917,217.30/1,374,659.55 = 816,906.90/x
  3. Step 3: Cross multiply
    917,217.30x = 1,374,659.55 × 816,906.90
  4. Step 4: Simplify right side
    917,217.30x = 1,122,968,871,545.90
  5. Step 5: Solve for x
    x = 1,122,968,871,545.90/917,217.30
  6. Step 6: Final answer
    x = 1,224,321.51

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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.