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Finding the Fourth Proportional to 453,930, 626,442.84 and 252,726

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Solution

The fourth proportional to 453,930, 626,442.84 and 252,726 is: 348,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,930 : 626,442.84 = 252,726 : x
  2. Step 2: Convert to fraction form
    453,930/626,442.84 = 252,726/x
  3. Step 3: Cross multiply
    453,930x = 626,442.84 × 252,726
  4. Step 4: Simplify right side
    453,930x = 158,318,393,181.84
  5. Step 5: Solve for x
    x = 158,318,393,181.84/453,930
  6. Step 6: Final answer
    x = 348,772.70

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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.