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Finding the Fourth Proportional to 978,465.77, 1,466,025.53 and 765,151.32

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Solution

The fourth proportional to 978,465.77, 1,466,025.53 and 765,151.32 is: 1,146,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,465.77 : 1,466,025.53 = 765,151.32 : x
  2. Step 2: Convert to fraction form
    978,465.77/1,466,025.53 = 765,151.32/x
  3. Step 3: Cross multiply
    978,465.77x = 1,466,025.53 × 765,151.32
  4. Step 4: Simplify right side
    978,465.77x = 1,121,731,365,607.44
  5. Step 5: Solve for x
    x = 1,121,731,365,607.44/978,465.77
  6. Step 6: Final answer
    x = 1,146,418.61

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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.