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Finding the Fourth Proportional to 644,826.66, 965,756.97 and 374,284.77

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Solution

The fourth proportional to 644,826.66, 965,756.97 and 374,284.77 is: 560,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,826.66 : 965,756.97 = 374,284.77 : x
  2. Step 2: Convert to fraction form
    644,826.66/965,756.97 = 374,284.77/x
  3. Step 3: Cross multiply
    644,826.66x = 965,756.97 × 374,284.77
  4. Step 4: Simplify right side
    644,826.66x = 361,468,125,392.35
  5. Step 5: Solve for x
    x = 361,468,125,392.35/644,826.66
  6. Step 6: Final answer
    x = 560,566.35

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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.