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Finding the Fourth Proportional to 457,674.66, 686,521.98 and 322,185.06

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Solution

The fourth proportional to 457,674.66, 686,521.98 and 322,185.06 is: 483,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,674.66 : 686,521.98 = 322,185.06 : x
  2. Step 2: Convert to fraction form
    457,674.66/686,521.98 = 322,185.06/x
  3. Step 3: Cross multiply
    457,674.66x = 686,521.98 × 322,185.06
  4. Step 4: Simplify right side
    457,674.66x = 221,187,125,317.62
  5. Step 5: Solve for x
    x = 221,187,125,317.62/457,674.66
  6. Step 6: Final answer
    x = 483,284.62

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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.