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Finding the Fourth Proportional to 639,395.64, 882,395.37 and 367,551.54

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Solution

The fourth proportional to 639,395.64, 882,395.37 and 367,551.54 is: 507,238.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,395.64 : 882,395.37 = 367,551.54 : x
  2. Step 2: Convert to fraction form
    639,395.64/882,395.37 = 367,551.54/x
  3. Step 3: Cross multiply
    639,395.64x = 882,395.37 × 367,551.54
  4. Step 4: Simplify right side
    639,395.64x = 324,325,777,132.37
  5. Step 5: Solve for x
    x = 324,325,777,132.37/639,395.64
  6. Step 6: Final answer
    x = 507,238.02

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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.