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Finding the Fourth Proportional to 506,635.56, 699,125.58 and 280,281.06

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Solution

The fourth proportional to 506,635.56, 699,125.58 and 280,281.06 is: 386,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,635.56 : 699,125.58 = 280,281.06 : x
  2. Step 2: Convert to fraction form
    506,635.56/699,125.58 = 280,281.06/x
  3. Step 3: Cross multiply
    506,635.56x = 699,125.58 × 280,281.06
  4. Step 4: Simplify right side
    506,635.56x = 195,951,658,635.52
  5. Step 5: Solve for x
    x = 195,951,658,635.52/506,635.56
  6. Step 6: Final answer
    x = 386,770.44

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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.