Home / 450,867.39-622,245.68-287,529.22

Finding the Fourth Proportional to 450,867.39, 622,245.68 and 287,529.22

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Solution

The fourth proportional to 450,867.39, 622,245.68 and 287,529.22 is: 396,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,867.39 : 622,245.68 = 287,529.22 : x
  2. Step 2: Convert to fraction form
    450,867.39/622,245.68 = 287,529.22/x
  3. Step 3: Cross multiply
    450,867.39x = 622,245.68 × 287,529.22
  4. Step 4: Simplify right side
    450,867.39x = 178,913,815,018.77
  5. Step 5: Solve for x
    x = 178,913,815,018.77/450,867.39
  6. Step 6: Final answer
    x = 396,821.37

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1.5x scale

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.