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Finding the Fourth Proportional to 635,747.40, 877,117.42 and 360,067.68

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Solution

The fourth proportional to 635,747.40, 877,117.42 and 360,067.68 is: 496,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,747.40 : 877,117.42 = 360,067.68 : x
  2. Step 2: Convert to fraction form
    635,747.40/877,117.42 = 360,067.68/x
  3. Step 3: Cross multiply
    635,747.40x = 877,117.42 × 360,067.68
  4. Step 4: Simplify right side
    635,747.40x = 315,821,634,506.99
  5. Step 5: Solve for x
    x = 315,821,634,506.99/635,747.40
  6. Step 6: Final answer
    x = 496,772.20

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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.