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Finding the Fourth Proportional to 384,707.21, 531,044.10 and 344,349.77

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Solution

The fourth proportional to 384,707.21, 531,044.10 and 344,349.77 is: 475,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,707.21 : 531,044.10 = 344,349.77 : x
  2. Step 2: Convert to fraction form
    384,707.21/531,044.10 = 344,349.77/x
  3. Step 3: Cross multiply
    384,707.21x = 531,044.10 × 344,349.77
  4. Step 4: Simplify right side
    384,707.21x = 182,864,911,039.64
  5. Step 5: Solve for x
    x = 182,864,911,039.64/384,707.21
  6. Step 6: Final answer
    x = 475,335.29

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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.