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Finding the Fourth Proportional to 455,337.13, 683,362.57 and 317,664.91

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Solution

The fourth proportional to 455,337.13, 683,362.57 and 317,664.91 is: 476,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,337.13 : 683,362.57 = 317,664.91 : x
  2. Step 2: Convert to fraction form
    455,337.13/683,362.57 = 317,664.91/x
  3. Step 3: Cross multiply
    455,337.13x = 683,362.57 × 317,664.91
  4. Step 4: Simplify right side
    455,337.13x = 217,080,309,296.42
  5. Step 5: Solve for x
    x = 217,080,309,296.42/455,337.13
  6. Step 6: Final answer
    x = 476,746.34

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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.