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Finding the Fourth Proportional to 500,302.67, 690,412.28 and 270,855.72

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Solution

The fourth proportional to 500,302.67, 690,412.28 and 270,855.72 is: 373,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,302.67 : 690,412.28 = 270,855.72 : x
  2. Step 2: Convert to fraction form
    500,302.67/690,412.28 = 270,855.72/x
  3. Step 3: Cross multiply
    500,302.67x = 690,412.28 × 270,855.72
  4. Step 4: Simplify right side
    500,302.67x = 187,002,113,841.96
  5. Step 5: Solve for x
    x = 187,002,113,841.96/500,302.67
  6. Step 6: Final answer
    x = 373,777.97

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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.