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Finding the Fourth Proportional to 808,253.10, 1,212,264.45 and 275,798.70

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Solution

The fourth proportional to 808,253.10, 1,212,264.45 and 275,798.70 is: 413,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,253.10 : 1,212,264.45 = 275,798.70 : x
  2. Step 2: Convert to fraction form
    808,253.10/1,212,264.45 = 275,798.70/x
  3. Step 3: Cross multiply
    808,253.10x = 1,212,264.45 × 275,798.70
  4. Step 4: Simplify right side
    808,253.10x = 334,340,959,366.22
  5. Step 5: Solve for x
    x = 334,340,959,366.22/808,253.10
  6. Step 6: Final answer
    x = 413,658.74

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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.