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Finding the Fourth Proportional to 500,457.33, 690,631.47 and 271,016.42

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Solution

The fourth proportional to 500,457.33, 690,631.47 and 271,016.42 is: 374,002.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,457.33 : 690,631.47 = 271,016.42 : x
  2. Step 2: Convert to fraction form
    500,457.33/690,631.47 = 271,016.42/x
  3. Step 3: Cross multiply
    500,457.33x = 690,631.47 × 271,016.42
  4. Step 4: Simplify right side
    500,457.33x = 187,172,465,085.58
  5. Step 5: Solve for x
    x = 187,172,465,085.58/500,457.33
  6. Step 6: Final answer
    x = 374,002.84

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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.