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Finding the Fourth Proportional to 517,789.55, 714,378.33 and 302,777.37

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Solution

The fourth proportional to 517,789.55, 714,378.33 and 302,777.37 is: 417,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,789.55 : 714,378.33 = 302,777.37 : x
  2. Step 2: Convert to fraction form
    517,789.55/714,378.33 = 302,777.37/x
  3. Step 3: Cross multiply
    517,789.55x = 714,378.33 × 302,777.37
  4. Step 4: Simplify right side
    517,789.55x = 216,297,591,942.39
  5. Step 5: Solve for x
    x = 216,297,591,942.39/517,789.55
  6. Step 6: Final answer
    x = 417,732.64

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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.