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Finding the Fourth Proportional to 662,902.95, 993,582.90 and 378,792.63

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Solution

The fourth proportional to 662,902.95, 993,582.90 and 378,792.63 is: 567,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,902.95 : 993,582.90 = 378,792.63 : x
  2. Step 2: Convert to fraction form
    662,902.95/993,582.90 = 378,792.63/x
  3. Step 3: Cross multiply
    662,902.95x = 993,582.90 × 378,792.63
  4. Step 4: Simplify right side
    662,902.95x = 376,361,879,814.03
  5. Step 5: Solve for x
    x = 376,361,879,814.03/662,902.95
  6. Step 6: Final answer
    x = 567,748.08

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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.