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Finding the Fourth Proportional to 666,157.98, 919,305.27 and 364,345.50

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Solution

The fourth proportional to 666,157.98, 919,305.27 and 364,345.50 is: 502,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,157.98 : 919,305.27 = 364,345.50 : x
  2. Step 2: Convert to fraction form
    666,157.98/919,305.27 = 364,345.50/x
  3. Step 3: Cross multiply
    666,157.98x = 919,305.27 × 364,345.50
  4. Step 4: Simplify right side
    666,157.98x = 334,944,738,250.79
  5. Step 5: Solve for x
    x = 334,944,738,250.79/666,157.98
  6. Step 6: Final answer
    x = 502,800.76

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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.