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Finding the Fourth Proportional to 497,391.76, 686,400.51 and 271,037.26

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Solution

The fourth proportional to 497,391.76, 686,400.51 and 271,037.26 is: 374,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,391.76 : 686,400.51 = 271,037.26 : x
  2. Step 2: Convert to fraction form
    497,391.76/686,400.51 = 271,037.26/x
  3. Step 3: Cross multiply
    497,391.76x = 686,400.51 × 271,037.26
  4. Step 4: Simplify right side
    497,391.76x = 186,040,113,493.00
  5. Step 5: Solve for x
    x = 186,040,113,493.00/497,391.76
  6. Step 6: Final answer
    x = 374,031.35

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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.