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Finding the Fourth Proportional to 663,657.96, 996,483.84 and 379,669.16

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Solution

The fourth proportional to 663,657.96, 996,483.84 and 379,669.16 is: 570,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,657.96 : 996,483.84 = 379,669.16 : x
  2. Step 2: Convert to fraction form
    663,657.96/996,483.84 = 379,669.16/x
  3. Step 3: Cross multiply
    663,657.96x = 996,483.84 × 379,669.16
  4. Step 4: Simplify right side
    663,657.96x = 378,334,182,486.37
  5. Step 5: Solve for x
    x = 378,334,182,486.37/663,657.96
  6. Step 6: Final answer
    x = 570,074.05

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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.