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Finding the Fourth Proportional to 642,886, 964,329 and 248,902

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Solution

The fourth proportional to 642,886, 964,329 and 248,902 is: 373,353

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,886 : 964,329 = 248,902 : x
  2. Step 2: Convert to fraction form
    642,886/964,329 = 248,902/x
  3. Step 3: Cross multiply
    642,886x = 964,329 × 248,902
  4. Step 4: Simplify right side
    642,886x = 240,023,416,758
  5. Step 5: Solve for x
    x = 240,023,416,758/642,886
  6. Step 6: Final answer
    x = 373,353

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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.