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Finding the Fourth Proportional to 746.07, 1,029.54 and 414.47

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Solution

The fourth proportional to 746.07, 1,029.54 and 414.47 is: 571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.07 : 1,029.54 = 414.47 : x
  2. Step 2: Convert to fraction form
    746.07/1,029.54 = 414.47/x
  3. Step 3: Cross multiply
    746.07x = 1,029.54 × 414.47
  4. Step 4: Simplify right side
    746.07x = 426,714.48
  5. Step 5: Solve for x
    x = 426,714.48/746.07
  6. Step 6: Final answer
    x = 571.95

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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.