Home / 635,731.28-877,325.40-349,258.58

Finding the Fourth Proportional to 635,731.28, 877,325.40 and 349,258.58

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Solution

The fourth proportional to 635,731.28, 877,325.40 and 349,258.58 is: 481,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,731.28 : 877,325.40 = 349,258.58 : x
  2. Step 2: Convert to fraction form
    635,731.28/877,325.40 = 349,258.58/x
  3. Step 3: Cross multiply
    635,731.28x = 877,325.40 × 349,258.58
  4. Step 4: Simplify right side
    635,731.28x = 306,413,419,015.31
  5. Step 5: Solve for x
    x = 306,413,419,015.31/635,731.28
  6. Step 6: Final answer
    x = 481,985.76

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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.