Home / 911,917.70-1,258,599.51-617,433.86

Finding the Fourth Proportional to 911,917.70, 1,258,599.51 and 617,433.86

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Solution

The fourth proportional to 911,917.70, 1,258,599.51 and 617,433.86 is: 852,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,917.70 : 1,258,599.51 = 617,433.86 : x
  2. Step 2: Convert to fraction form
    911,917.70/1,258,599.51 = 617,433.86/x
  3. Step 3: Cross multiply
    911,917.70x = 1,258,599.51 × 617,433.86
  4. Step 4: Simplify right side
    911,917.70x = 777,101,953,653.41
  5. Step 5: Solve for x
    x = 777,101,953,653.41/911,917.70
  6. Step 6: Final answer
    x = 852,162.38

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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.