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Finding the Fourth Proportional to 1,433,769.96, 1,978,527.24 and 789,066.93

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Solution

The fourth proportional to 1,433,769.96, 1,978,527.24 and 789,066.93 is: 1,088,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,769.96 : 1,978,527.24 = 789,066.93 : x
  2. Step 2: Convert to fraction form
    1,433,769.96/1,978,527.24 = 789,066.93/x
  3. Step 3: Cross multiply
    1,433,769.96x = 1,978,527.24 × 789,066.93
  4. Step 4: Simplify right side
    1,433,769.96x = 1,561,190,415,188.17
  5. Step 5: Solve for x
    x = 1,561,190,415,188.17/1,433,769.96
  6. Step 6: Final answer
    x = 1,088,870.92

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Why These Related Problems?

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