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Finding the Fourth Proportional to 651,314.62, 977,305.65 and 310,144.42

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Solution

The fourth proportional to 651,314.62, 977,305.65 and 310,144.42 is: 465,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,314.62 : 977,305.65 = 310,144.42 : x
  2. Step 2: Convert to fraction form
    651,314.62/977,305.65 = 310,144.42/x
  3. Step 3: Cross multiply
    651,314.62x = 977,305.65 × 310,144.42
  4. Step 4: Simplify right side
    651,314.62x = 303,105,893,981.97
  5. Step 5: Solve for x
    x = 303,105,893,981.97/651,314.62
  6. Step 6: Final answer
    x = 465,375.54

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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.