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Finding the Fourth Proportional to 671,179.32, 926,409.42 and 395,777.70

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Solution

The fourth proportional to 671,179.32, 926,409.42 and 395,777.70 is: 546,280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,179.32 : 926,409.42 = 395,777.70 : x
  2. Step 2: Convert to fraction form
    671,179.32/926,409.42 = 395,777.70/x
  3. Step 3: Cross multiply
    671,179.32x = 926,409.42 × 395,777.70
  4. Step 4: Simplify right side
    671,179.32x = 366,652,189,505.93
  5. Step 5: Solve for x
    x = 366,652,189,505.93/671,179.32
  6. Step 6: Final answer
    x = 546,280.52

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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.