Home / 886,838.90-1,330,258.35-512,669.30

Finding the Fourth Proportional to 886,838.90, 1,330,258.35 and 512,669.30

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Solution

The fourth proportional to 886,838.90, 1,330,258.35 and 512,669.30 is: 769,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,838.90 : 1,330,258.35 = 512,669.30 : x
  2. Step 2: Convert to fraction form
    886,838.90/1,330,258.35 = 512,669.30/x
  3. Step 3: Cross multiply
    886,838.90x = 1,330,258.35 × 512,669.30
  4. Step 4: Simplify right side
    886,838.90x = 681,982,617,113.66
  5. Step 5: Solve for x
    x = 681,982,617,113.66/886,838.90
  6. Step 6: Final answer
    x = 769,003.95

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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.