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Finding the Fourth Proportional to 635,628.24, 877,172.18 and 349,154.73

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Solution

The fourth proportional to 635,628.24, 877,172.18 and 349,154.73 is: 481,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,628.24 : 877,172.18 = 349,154.73 : x
  2. Step 2: Convert to fraction form
    635,628.24/877,172.18 = 349,154.73/x
  3. Step 3: Cross multiply
    635,628.24x = 877,172.18 × 349,154.73
  4. Step 4: Simplify right side
    635,628.24x = 306,268,813,925.64
  5. Step 5: Solve for x
    x = 306,268,813,925.64/635,628.24
  6. Step 6: Final answer
    x = 481,836.39

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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.