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Finding the Fourth Proportional to 497,690.92, 686,816.58 and 271,340.20

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Solution

The fourth proportional to 497,690.92, 686,816.58 and 271,340.20 is: 374,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,690.92 : 686,816.58 = 271,340.20 : x
  2. Step 2: Convert to fraction form
    497,690.92/686,816.58 = 271,340.20/x
  3. Step 3: Cross multiply
    497,690.92x = 686,816.58 × 271,340.20
  4. Step 4: Simplify right side
    497,690.92x = 186,360,948,180.52
  5. Step 5: Solve for x
    x = 186,360,948,180.52/497,690.92
  6. Step 6: Final answer
    x = 374,451.17

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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.