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Finding the Fourth Proportional to 471,326.94, 706,990.41 and 388,045.98

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Solution

The fourth proportional to 471,326.94, 706,990.41 and 388,045.98 is: 582,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,326.94 : 706,990.41 = 388,045.98 : x
  2. Step 2: Convert to fraction form
    471,326.94/706,990.41 = 388,045.98/x
  3. Step 3: Cross multiply
    471,326.94x = 706,990.41 × 388,045.98
  4. Step 4: Simplify right side
    471,326.94x = 274,344,786,499.05
  5. Step 5: Solve for x
    x = 274,344,786,499.05/471,326.94
  6. Step 6: Final answer
    x = 582,068.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.