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Finding the Fourth Proportional to 486,667.19, 671,534.37 and 271,779.86

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Solution

The fourth proportional to 486,667.19, 671,534.37 and 271,779.86 is: 375,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,667.19 : 671,534.37 = 271,779.86 : x
  2. Step 2: Convert to fraction form
    486,667.19/671,534.37 = 271,779.86/x
  3. Step 3: Cross multiply
    486,667.19x = 671,534.37 × 271,779.86
  4. Step 4: Simplify right side
    486,667.19x = 182,509,517,063.79
  5. Step 5: Solve for x
    x = 182,509,517,063.79/486,667.19
  6. Step 6: Final answer
    x = 375,019.15

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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.