Home / 778,336.56-1,074,414.78-669,009.24

Finding the Fourth Proportional to 778,336.56, 1,074,414.78 and 669,009.24

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Solution

The fourth proportional to 778,336.56, 1,074,414.78 and 669,009.24 is: 923,499.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,336.56 : 1,074,414.78 = 669,009.24 : x
  2. Step 2: Convert to fraction form
    778,336.56/1,074,414.78 = 669,009.24/x
  3. Step 3: Cross multiply
    778,336.56x = 1,074,414.78 × 669,009.24
  4. Step 4: Simplify right side
    778,336.56x = 718,793,415,412.57
  5. Step 5: Solve for x
    x = 718,793,415,412.57/778,336.56
  6. Step 6: Final answer
    x = 923,499.49

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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.