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Finding the Fourth Proportional to 455,697.90, 683,685.36 and 322,835.22

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Solution

The fourth proportional to 455,697.90, 683,685.36 and 322,835.22 is: 484,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,697.90 : 683,685.36 = 322,835.22 : x
  2. Step 2: Convert to fraction form
    455,697.90/683,685.36 = 322,835.22/x
  3. Step 3: Cross multiply
    455,697.90x = 683,685.36 × 322,835.22
  4. Step 4: Simplify right side
    455,697.90x = 220,717,713,606.38
  5. Step 5: Solve for x
    x = 220,717,713,606.38/455,697.90
  6. Step 6: Final answer
    x = 484,350.96

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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.