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Finding the Fourth Proportional to 466,487.08, 643,950.78 and 313,613.93

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Solution

The fourth proportional to 466,487.08, 643,950.78 and 313,613.93 is: 432,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,487.08 : 643,950.78 = 313,613.93 : x
  2. Step 2: Convert to fraction form
    466,487.08/643,950.78 = 313,613.93/x
  3. Step 3: Cross multiply
    466,487.08x = 643,950.78 × 313,613.93
  4. Step 4: Simplify right side
    466,487.08x = 201,951,934,842.37
  5. Step 5: Solve for x
    x = 201,951,934,842.37/466,487.08
  6. Step 6: Final answer
    x = 432,920.75

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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.