Home / 955,118.84-1,317,944.34-645,694.79

Finding the Fourth Proportional to 955,118.84, 1,317,944.34 and 645,694.79

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Solution

The fourth proportional to 955,118.84, 1,317,944.34 and 645,694.79 is: 890,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,118.84 : 1,317,944.34 = 645,694.79 : x
  2. Step 2: Convert to fraction form
    955,118.84/1,317,944.34 = 645,694.79/x
  3. Step 3: Cross multiply
    955,118.84x = 1,317,944.34 × 645,694.79
  4. Step 4: Simplify right side
    955,118.84x = 850,989,787,258.27
  5. Step 5: Solve for x
    x = 850,989,787,258.27/955,118.84
  6. Step 6: Final answer
    x = 890,977.91

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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.