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Finding the Fourth Proportional to 464,527.99, 640,566.34 and 328,499.83

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Solution

The fourth proportional to 464,527.99, 640,566.34 and 328,499.83 is: 452,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,527.99 : 640,566.34 = 328,499.83 : x
  2. Step 2: Convert to fraction form
    464,527.99/640,566.34 = 328,499.83/x
  3. Step 3: Cross multiply
    464,527.99x = 640,566.34 × 328,499.83
  4. Step 4: Simplify right side
    464,527.99x = 210,425,933,793.72
  5. Step 5: Solve for x
    x = 210,425,933,793.72/464,527.99
  6. Step 6: Final answer
    x = 452,988.71

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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.