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Finding the Fourth Proportional to 702,649.78, 1,053,328.83 and 253,260.70

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Solution

The fourth proportional to 702,649.78, 1,053,328.83 and 253,260.70 is: 379,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,649.78 : 1,053,328.83 = 253,260.70 : x
  2. Step 2: Convert to fraction form
    702,649.78/1,053,328.83 = 253,260.70/x
  3. Step 3: Cross multiply
    702,649.78x = 1,053,328.83 × 253,260.70
  4. Step 4: Simplify right side
    702,649.78x = 266,766,796,815.98
  5. Step 5: Solve for x
    x = 266,766,796,815.98/702,649.78
  6. Step 6: Final answer
    x = 379,658.27

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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.