Home / 505,423.82-697,513.28-276,002.43

Finding the Fourth Proportional to 505,423.82, 697,513.28 and 276,002.43

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Solution

The fourth proportional to 505,423.82, 697,513.28 and 276,002.43 is: 380,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,423.82 : 697,513.28 = 276,002.43 : x
  2. Step 2: Convert to fraction form
    505,423.82/697,513.28 = 276,002.43/x
  3. Step 3: Cross multiply
    505,423.82x = 697,513.28 × 276,002.43
  4. Step 4: Simplify right side
    505,423.82x = 192,515,360,237.27
  5. Step 5: Solve for x
    x = 192,515,360,237.27/505,423.82
  6. Step 6: Final answer
    x = 380,898.87

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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.