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Finding the Fourth Proportional to 425,850.98, 637,447.83 and 313,657.88

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Solution

The fourth proportional to 425,850.98, 637,447.83 and 313,657.88 is: 469,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,850.98 : 637,447.83 = 313,657.88 : x
  2. Step 2: Convert to fraction form
    425,850.98/637,447.83 = 313,657.88/x
  3. Step 3: Cross multiply
    425,850.98x = 637,447.83 × 313,657.88
  4. Step 4: Simplify right side
    425,850.98x = 199,940,534,968.40
  5. Step 5: Solve for x
    x = 199,940,534,968.40/425,850.98
  6. Step 6: Final answer
    x = 469,508.22

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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.