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Finding the Fourth Proportional to 399,628.56, 596,527.48 and 349,182.64

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Solution

The fourth proportional to 399,628.56, 596,527.48 and 349,182.64 is: 521,226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,628.56 : 596,527.48 = 349,182.64 : x
  2. Step 2: Convert to fraction form
    399,628.56/596,527.48 = 349,182.64/x
  3. Step 3: Cross multiply
    399,628.56x = 596,527.48 × 349,182.64
  4. Step 4: Simplify right side
    399,628.56x = 208,297,040,298.95
  5. Step 5: Solve for x
    x = 208,297,040,298.95/399,628.56
  6. Step 6: Final answer
    x = 521,226.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.