Home / 694,138.51-957,981.81-422,225.16

Finding the Fourth Proportional to 694,138.51, 957,981.81 and 422,225.16

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Solution

The fourth proportional to 694,138.51, 957,981.81 and 422,225.16 is: 582,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,138.51 : 957,981.81 = 422,225.16 : x
  2. Step 2: Convert to fraction form
    694,138.51/957,981.81 = 422,225.16/x
  3. Step 3: Cross multiply
    694,138.51x = 957,981.81 × 422,225.16
  4. Step 4: Simplify right side
    694,138.51x = 404,484,023,004.34
  5. Step 5: Solve for x
    x = 404,484,023,004.34/694,138.51
  6. Step 6: Final answer
    x = 582,713.71

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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.