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Finding the Fourth Proportional to 635,535.72, 876,673.14 and 380,739.27

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Solution

The fourth proportional to 635,535.72, 876,673.14 and 380,739.27 is: 525,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,535.72 : 876,673.14 = 380,739.27 : x
  2. Step 2: Convert to fraction form
    635,535.72/876,673.14 = 380,739.27/x
  3. Step 3: Cross multiply
    635,535.72x = 876,673.14 × 380,739.27
  4. Step 4: Simplify right side
    635,535.72x = 333,783,891,352.21
  5. Step 5: Solve for x
    x = 333,783,891,352.21/635,535.72
  6. Step 6: Final answer
    x = 525,200.84

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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.