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Finding the Fourth Proportional to 384,701.72, 531,036.52 and 344,344.28

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Solution

The fourth proportional to 384,701.72, 531,036.52 and 344,344.28 is: 475,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,701.72 : 531,036.52 = 344,344.28 : x
  2. Step 2: Convert to fraction form
    384,701.72/531,036.52 = 344,344.28/x
  3. Step 3: Cross multiply
    384,701.72x = 531,036.52 × 344,344.28
  4. Step 4: Simplify right side
    384,701.72x = 182,859,388,133.11
  5. Step 5: Solve for x
    x = 182,859,388,133.11/384,701.72
  6. Step 6: Final answer
    x = 475,327.71

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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.