Home / 690,201.04-952,466.10-388,395.04

Finding the Fourth Proportional to 690,201.04, 952,466.10 and 388,395.04

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Solution

The fourth proportional to 690,201.04, 952,466.10 and 388,395.04 is: 535,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,201.04 : 952,466.10 = 388,395.04 : x
  2. Step 2: Convert to fraction form
    690,201.04/952,466.10 = 388,395.04/x
  3. Step 3: Cross multiply
    690,201.04x = 952,466.10 × 388,395.04
  4. Step 4: Simplify right side
    690,201.04x = 369,933,109,008.14
  5. Step 5: Solve for x
    x = 369,933,109,008.14/690,201.04
  6. Step 6: Final answer
    x = 535,978.78

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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.