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Finding the Fourth Proportional to 464,833.12, 641,384.40 and 312,093.04

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Solution

The fourth proportional to 464,833.12, 641,384.40 and 312,093.04 is: 430,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,833.12 : 641,384.40 = 312,093.04 : x
  2. Step 2: Convert to fraction form
    464,833.12/641,384.40 = 312,093.04/x
  3. Step 3: Cross multiply
    464,833.12x = 641,384.40 × 312,093.04
  4. Step 4: Simplify right side
    464,833.12x = 200,171,607,204.58
  5. Step 5: Solve for x
    x = 200,171,607,204.58/464,833.12
  6. Step 6: Final answer
    x = 430,631.12

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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.