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Finding the Fourth Proportional to 578,697.59, 798,812.30 and 471,080.78

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Solution

The fourth proportional to 578,697.59, 798,812.30 and 471,080.78 is: 650,262.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,697.59 : 798,812.30 = 471,080.78 : x
  2. Step 2: Convert to fraction form
    578,697.59/798,812.30 = 471,080.78/x
  3. Step 3: Cross multiply
    578,697.59x = 798,812.30 × 471,080.78
  4. Step 4: Simplify right side
    578,697.59x = 376,305,120,999.22
  5. Step 5: Solve for x
    x = 376,305,120,999.22/578,697.59
  6. Step 6: Final answer
    x = 650,262.12

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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.