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Finding the Fourth Proportional to 671,330.24, 1,006,998 and 271,978.56

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Solution

The fourth proportional to 671,330.24, 1,006,998 and 271,978.56 is: 407,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,330.24 : 1,006,998 = 271,978.56 : x
  2. Step 2: Convert to fraction form
    671,330.24/1,006,998 = 271,978.56/x
  3. Step 3: Cross multiply
    671,330.24x = 1,006,998 × 271,978.56
  4. Step 4: Simplify right side
    671,330.24x = 273,881,865,962.88
  5. Step 5: Solve for x
    x = 273,881,865,962.88/671,330.24
  6. Step 6: Final answer
    x = 407,968.91

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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.