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Finding the Fourth Proportional to 635,627.87, 877,171.66 and 349,154.36

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Solution

The fourth proportional to 635,627.87, 877,171.66 and 349,154.36 is: 481,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,627.87 : 877,171.66 = 349,154.36 : x
  2. Step 2: Convert to fraction form
    635,627.87/877,171.66 = 349,154.36/x
  3. Step 3: Cross multiply
    635,627.87x = 877,171.66 × 349,154.36
  4. Step 4: Simplify right side
    635,627.87x = 306,268,304,298.69
  5. Step 5: Solve for x
    x = 306,268,304,298.69/635,627.87
  6. Step 6: Final answer
    x = 481,835.87

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1.5x scale

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.