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Finding the Fourth Proportional to 881,353.96, 1,216,268.58 and 478,945

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Solution

The fourth proportional to 881,353.96, 1,216,268.58 and 478,945 is: 660,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,353.96 : 1,216,268.58 = 478,945 : x
  2. Step 2: Convert to fraction form
    881,353.96/1,216,268.58 = 478,945/x
  3. Step 3: Cross multiply
    881,353.96x = 1,216,268.58 × 478,945
  4. Step 4: Simplify right side
    881,353.96x = 582,525,755,048.10
  5. Step 5: Solve for x
    x = 582,525,755,048.10/881,353.96
  6. Step 6: Final answer
    x = 660,944.16

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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.