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Finding the Fourth Proportional to 501,179.40, 751,775.38 and 331,487.34

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Solution

The fourth proportional to 501,179.40, 751,775.38 and 331,487.34 is: 497,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,179.40 : 751,775.38 = 331,487.34 : x
  2. Step 2: Convert to fraction form
    501,179.40/751,775.38 = 331,487.34/x
  3. Step 3: Cross multiply
    501,179.40x = 751,775.38 × 331,487.34
  4. Step 4: Simplify right side
    501,179.40x = 249,204,017,345.81
  5. Step 5: Solve for x
    x = 249,204,017,345.81/501,179.40
  6. Step 6: Final answer
    x = 497,235.16

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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.