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Finding the Fourth Proportional to 638,772.97, 956,166.48 and 470,483.32

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Solution

The fourth proportional to 638,772.97, 956,166.48 and 470,483.32 is: 704,257.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,772.97 : 956,166.48 = 470,483.32 : x
  2. Step 2: Convert to fraction form
    638,772.97/956,166.48 = 470,483.32/x
  3. Step 3: Cross multiply
    638,772.97x = 956,166.48 × 470,483.32
  4. Step 4: Simplify right side
    638,772.97x = 449,860,379,983.11
  5. Step 5: Solve for x
    x = 449,860,379,983.11/638,772.97
  6. Step 6: Final answer
    x = 704,257.07

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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.