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Finding the Fourth Proportional to 490,888.42, 677,487.71 and 276,026.94

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Solution

The fourth proportional to 490,888.42, 677,487.71 and 276,026.94 is: 380,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,888.42 : 677,487.71 = 276,026.94 : x
  2. Step 2: Convert to fraction form
    490,888.42/677,487.71 = 276,026.94/x
  3. Step 3: Cross multiply
    490,888.42x = 677,487.71 × 276,026.94
  4. Step 4: Simplify right side
    490,888.42x = 187,004,859,478.91
  5. Step 5: Solve for x
    x = 187,004,859,478.91/490,888.42
  6. Step 6: Final answer
    x = 380,951.87

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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.