Home / 694,426.19-958,345.37-388,484.33

Finding the Fourth Proportional to 694,426.19, 958,345.37 and 388,484.33

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Solution

The fourth proportional to 694,426.19, 958,345.37 and 388,484.33 is: 536,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,426.19 : 958,345.37 = 388,484.33 : x
  2. Step 2: Convert to fraction form
    694,426.19/958,345.37 = 388,484.33/x
  3. Step 3: Cross multiply
    694,426.19x = 958,345.37 × 388,484.33
  4. Step 4: Simplify right side
    694,426.19x = 372,302,157,961.69
  5. Step 5: Solve for x
    x = 372,302,157,961.69/694,426.19
  6. Step 6: Final answer
    x = 536,129.20

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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.