Home / 694,218.65-958,110.46-388,312.03

Finding the Fourth Proportional to 694,218.65, 958,110.46 and 388,312.03

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Solution

The fourth proportional to 694,218.65, 958,110.46 and 388,312.03 is: 535,920.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,218.65 : 958,110.46 = 388,312.03 : x
  2. Step 2: Convert to fraction form
    694,218.65/958,110.46 = 388,312.03/x
  3. Step 3: Cross multiply
    694,218.65x = 958,110.46 × 388,312.03
  4. Step 4: Simplify right side
    694,218.65x = 372,045,814,162.51
  5. Step 5: Solve for x
    x = 372,045,814,162.51/694,218.65
  6. Step 6: Final answer
    x = 535,920.22

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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.