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Finding the Fourth Proportional to 648,367.29, 972,676.88 and 248,978.70

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Solution

The fourth proportional to 648,367.29, 972,676.88 and 248,978.70 is: 373,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,367.29 : 972,676.88 = 248,978.70 : x
  2. Step 2: Convert to fraction form
    648,367.29/972,676.88 = 248,978.70/x
  3. Step 3: Cross multiply
    648,367.29x = 972,676.88 × 248,978.70
  4. Step 4: Simplify right side
    648,367.29x = 242,175,825,102.46
  5. Step 5: Solve for x
    x = 242,175,825,102.46/648,367.29
  6. Step 6: Final answer
    x = 373,516.41

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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.