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Finding the Fourth Proportional to 488,790.95, 674,404.86 and 295,045.53

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Solution

The fourth proportional to 488,790.95, 674,404.86 and 295,045.53 is: 407,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,790.95 : 674,404.86 = 295,045.53 : x
  2. Step 2: Convert to fraction form
    488,790.95/674,404.86 = 295,045.53/x
  3. Step 3: Cross multiply
    488,790.95x = 674,404.86 × 295,045.53
  4. Step 4: Simplify right side
    488,790.95x = 198,980,140,459.70
  5. Step 5: Solve for x
    x = 198,980,140,459.70/488,790.95
  6. Step 6: Final answer
    x = 407,086.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.