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Finding the Fourth Proportional to 666,958.98, 918,462.60 and 579,704.97

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Solution

The fourth proportional to 666,958.98, 918,462.60 and 579,704.97 is: 798,305.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,958.98 : 918,462.60 = 579,704.97 : x
  2. Step 2: Convert to fraction form
    666,958.98/918,462.60 = 579,704.97/x
  3. Step 3: Cross multiply
    666,958.98x = 918,462.60 × 579,704.97
  4. Step 4: Simplify right side
    666,958.98x = 532,437,333,979.12
  5. Step 5: Solve for x
    x = 532,437,333,979.12/666,958.98
  6. Step 6: Final answer
    x = 798,305.97

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1.5x scale

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.