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Finding the Fourth Proportional to 635,320.40, 876,762.71 and 363,388.82

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Solution

The fourth proportional to 635,320.40, 876,762.71 and 363,388.82 is: 501,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,320.40 : 876,762.71 = 363,388.82 : x
  2. Step 2: Convert to fraction form
    635,320.40/876,762.71 = 363,388.82/x
  3. Step 3: Cross multiply
    635,320.40x = 876,762.71 × 363,388.82
  4. Step 4: Simplify right side
    635,320.40x = 318,605,760,406.15
  5. Step 5: Solve for x
    x = 318,605,760,406.15/635,320.40
  6. Step 6: Final answer
    x = 501,488.32

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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.