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Finding the Fourth Proportional to 486,394.68, 671,196.72 and 271,548.40

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Solution

The fourth proportional to 486,394.68, 671,196.72 and 271,548.40 is: 374,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,394.68 : 671,196.72 = 271,548.40 : x
  2. Step 2: Convert to fraction form
    486,394.68/671,196.72 = 271,548.40/x
  3. Step 3: Cross multiply
    486,394.68x = 671,196.72 × 271,548.40
  4. Step 4: Simplify right side
    486,394.68x = 182,262,395,401.25
  5. Step 5: Solve for x
    x = 182,262,395,401.25/486,394.68
  6. Step 6: Final answer
    x = 374,721.19

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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.