Home / 1,112,336.39-1,535,065.56-628,872.71

Finding the Fourth Proportional to 1,112,336.39, 1,535,065.56 and 628,872.71

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Solution

The fourth proportional to 1,112,336.39, 1,535,065.56 and 628,872.71 is: 867,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,336.39 : 1,535,065.56 = 628,872.71 : x
  2. Step 2: Convert to fraction form
    1,112,336.39/1,535,065.56 = 628,872.71/x
  3. Step 3: Cross multiply
    1,112,336.39x = 1,535,065.56 × 628,872.71
  4. Step 4: Simplify right side
    1,112,336.39x = 965,360,831,069.54
  5. Step 5: Solve for x
    x = 965,360,831,069.54/1,112,336.39
  6. Step 6: Final answer
    x = 867,867.70

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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.