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Finding the Fourth Proportional to 639,625.88, 882,683.48 and 367,746.92

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Solution

The fourth proportional to 639,625.88, 882,683.48 and 367,746.92 is: 507,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,625.88 : 882,683.48 = 367,746.92 : x
  2. Step 2: Convert to fraction form
    639,625.88/882,683.48 = 367,746.92/x
  3. Step 3: Cross multiply
    639,625.88x = 882,683.48 × 367,746.92
  4. Step 4: Simplify right side
    639,625.88x = 324,604,124,852.73
  5. Step 5: Solve for x
    x = 324,604,124,852.73/639,625.88
  6. Step 6: Final answer
    x = 507,490.61

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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.