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Finding the Fourth Proportional to 562,884.88, 776,765.98 and 321,163.06

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Solution

The fourth proportional to 562,884.88, 776,765.98 and 321,163.06 is: 443,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,884.88 : 776,765.98 = 321,163.06 : x
  2. Step 2: Convert to fraction form
    562,884.88/776,765.98 = 321,163.06/x
  3. Step 3: Cross multiply
    562,884.88x = 776,765.98 × 321,163.06
  4. Step 4: Simplify right side
    562,884.88x = 249,468,539,040.70
  5. Step 5: Solve for x
    x = 249,468,539,040.70/562,884.88
  6. Step 6: Final answer
    x = 443,196.38

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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.