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Finding the Fourth Proportional to 506,951.55, 699,519.92 and 280,596.51

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Solution

The fourth proportional to 506,951.55, 699,519.92 and 280,596.51 is: 387,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,951.55 : 699,519.92 = 280,596.51 : x
  2. Step 2: Convert to fraction form
    506,951.55/699,519.92 = 280,596.51/x
  3. Step 3: Cross multiply
    506,951.55x = 699,519.92 × 280,596.51
  4. Step 4: Simplify right side
    506,951.55x = 196,282,846,824.50
  5. Step 5: Solve for x
    x = 196,282,846,824.50/506,951.55
  6. Step 6: Final answer
    x = 387,182.65

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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.