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Finding the Fourth Proportional to 891,781.41, 1,337,668.51 and 323,029.40

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Solution

The fourth proportional to 891,781.41, 1,337,668.51 and 323,029.40 is: 484,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,781.41 : 1,337,668.51 = 323,029.40 : x
  2. Step 2: Convert to fraction form
    891,781.41/1,337,668.51 = 323,029.40/x
  3. Step 3: Cross multiply
    891,781.41x = 1,337,668.51 × 323,029.40
  4. Step 4: Simplify right side
    891,781.41x = 432,106,256,818.34
  5. Step 5: Solve for x
    x = 432,106,256,818.34/891,781.41
  6. Step 6: Final answer
    x = 484,542.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.