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Finding the Fourth Proportional to 476,808.08, 715,837.56 and 319,739.60

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Solution

The fourth proportional to 476,808.08, 715,837.56 and 319,739.60 is: 480,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,808.08 : 715,837.56 = 319,739.60 : x
  2. Step 2: Convert to fraction form
    476,808.08/715,837.56 = 319,739.60/x
  3. Step 3: Cross multiply
    476,808.08x = 715,837.56 × 319,739.60
  4. Step 4: Simplify right side
    476,808.08x = 228,881,615,099.38
  5. Step 5: Solve for x
    x = 228,881,615,099.38/476,808.08
  6. Step 6: Final answer
    x = 480,028.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.