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Finding the Fourth Proportional to 582,640.64, 804,120.72 and 328,041.44

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Solution

The fourth proportional to 582,640.64, 804,120.72 and 328,041.44 is: 452,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,640.64 : 804,120.72 = 328,041.44 : x
  2. Step 2: Convert to fraction form
    582,640.64/804,120.72 = 328,041.44/x
  3. Step 3: Cross multiply
    582,640.64x = 804,120.72 × 328,041.44
  4. Step 4: Simplify right side
    582,640.64x = 263,784,918,922.64
  5. Step 5: Solve for x
    x = 263,784,918,922.64/582,640.64
  6. Step 6: Final answer
    x = 452,740.34

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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.