Home / 639,643.64-882,760.02-367,799.88

Finding the Fourth Proportional to 639,643.64, 882,760.02 and 367,799.88

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Solution

The fourth proportional to 639,643.64, 882,760.02 and 367,799.88 is: 507,593.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,643.64 : 882,760.02 = 367,799.88 : x
  2. Step 2: Convert to fraction form
    639,643.64/882,760.02 = 367,799.88/x
  3. Step 3: Cross multiply
    639,643.64x = 882,760.02 × 367,799.88
  4. Step 4: Simplify right side
    639,643.64x = 324,679,029,424.80
  5. Step 5: Solve for x
    x = 324,679,029,424.80/639,643.64
  6. Step 6: Final answer
    x = 507,593.62

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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.