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Finding the Fourth Proportional to 514,388.63, 710,202.87 and 321,090.64

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Solution

The fourth proportional to 514,388.63, 710,202.87 and 321,090.64 is: 443,321.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,388.63 : 710,202.87 = 321,090.64 : x
  2. Step 2: Convert to fraction form
    514,388.63/710,202.87 = 321,090.64/x
  3. Step 3: Cross multiply
    514,388.63x = 710,202.87 × 321,090.64
  4. Step 4: Simplify right side
    514,388.63x = 228,039,492,282.63
  5. Step 5: Solve for x
    x = 228,039,492,282.63/514,388.63
  6. Step 6: Final answer
    x = 443,321.41

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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.