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Finding the Fourth Proportional to 486,455.94, 671,280.99 and 271,609.61

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Solution

The fourth proportional to 486,455.94, 671,280.99 and 271,609.61 is: 374,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,455.94 : 671,280.99 = 271,609.61 : x
  2. Step 2: Convert to fraction form
    486,455.94/671,280.99 = 271,609.61/x
  3. Step 3: Cross multiply
    486,455.94x = 671,280.99 × 271,609.61
  4. Step 4: Simplify right side
    486,455.94x = 182,326,369,572.52
  5. Step 5: Solve for x
    x = 182,326,369,572.52/486,455.94
  6. Step 6: Final answer
    x = 374,805.52

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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.