Home / 911,917.20-1,258,598.82-617,433.36

Finding the Fourth Proportional to 911,917.20, 1,258,598.82 and 617,433.36

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Solution

The fourth proportional to 911,917.20, 1,258,598.82 and 617,433.36 is: 852,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,917.20 : 1,258,598.82 = 617,433.36 : x
  2. Step 2: Convert to fraction form
    911,917.20/1,258,598.82 = 617,433.36/x
  3. Step 3: Cross multiply
    911,917.20x = 1,258,598.82 × 617,433.36
  4. Step 4: Simplify right side
    911,917.20x = 777,100,898,324.64
  5. Step 5: Solve for x
    x = 777,100,898,324.64/911,917.20
  6. Step 6: Final answer
    x = 852,161.69

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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.