Home / 694,238.03-958,137.22-388,331.40

Finding the Fourth Proportional to 694,238.03, 958,137.22 and 388,331.40

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Solution

The fourth proportional to 694,238.03, 958,137.22 and 388,331.40 is: 535,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,238.03 : 958,137.22 = 388,331.40 : x
  2. Step 2: Convert to fraction form
    694,238.03/958,137.22 = 388,331.40/x
  3. Step 3: Cross multiply
    694,238.03x = 958,137.22 × 388,331.40
  4. Step 4: Simplify right side
    694,238.03x = 372,074,768,034.71
  5. Step 5: Solve for x
    x = 372,074,768,034.71/694,238.03
  6. Step 6: Final answer
    x = 535,946.97

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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.