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Finding the Fourth Proportional to 502,561.72, 693,537.42 and 276,221.80

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Solution

The fourth proportional to 502,561.72, 693,537.42 and 276,221.80 is: 381,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,561.72 : 693,537.42 = 276,221.80 : x
  2. Step 2: Convert to fraction form
    502,561.72/693,537.42 = 276,221.80/x
  3. Step 3: Cross multiply
    502,561.72x = 693,537.42 × 276,221.80
  4. Step 4: Simplify right side
    502,561.72x = 191,570,154,519.76
  5. Step 5: Solve for x
    x = 191,570,154,519.76/502,561.72
  6. Step 6: Final answer
    x = 381,187.32

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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.