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Finding the Fourth Proportional to 582,751.20, 804,422.64 and 455,468.16

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Solution

The fourth proportional to 582,751.20, 804,422.64 and 455,468.16 is: 628,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,751.20 : 804,422.64 = 455,468.16 : x
  2. Step 2: Convert to fraction form
    582,751.20/804,422.64 = 455,468.16/x
  3. Step 3: Cross multiply
    582,751.20x = 804,422.64 × 455,468.16
  4. Step 4: Simplify right side
    582,751.20x = 366,388,899,703.14
  5. Step 5: Solve for x
    x = 366,388,899,703.14/582,751.20
  6. Step 6: Final answer
    x = 628,722.69

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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.