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Finding the Fourth Proportional to 487,447.77, 672,770.91 and 326,583.29

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Solution

The fourth proportional to 487,447.77, 672,770.91 and 326,583.29 is: 450,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,447.77 : 672,770.91 = 326,583.29 : x
  2. Step 2: Convert to fraction form
    487,447.77/672,770.91 = 326,583.29/x
  3. Step 3: Cross multiply
    487,447.77x = 672,770.91 × 326,583.29
  4. Step 4: Simplify right side
    487,447.77x = 219,715,740,110.71
  5. Step 5: Solve for x
    x = 219,715,740,110.71/487,447.77
  6. Step 6: Final answer
    x = 450,747.24

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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.