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Finding the Fourth Proportional to 978,548.59, 1,466,406.33 and 674,630.83

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Solution

The fourth proportional to 978,548.59, 1,466,406.33 and 674,630.83 is: 1,010,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,548.59 : 1,466,406.33 = 674,630.83 : x
  2. Step 2: Convert to fraction form
    978,548.59/1,466,406.33 = 674,630.83/x
  3. Step 3: Cross multiply
    978,548.59x = 1,466,406.33 × 674,630.83
  4. Step 4: Simplify right side
    978,548.59x = 989,282,919,525.15
  5. Step 5: Solve for x
    x = 989,282,919,525.15/978,548.59
  6. Step 6: Final answer
    x = 1,010,969.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.