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Finding the Fourth Proportional to 789,577, 1,089,624.87 and 427,007.94

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Solution

The fourth proportional to 789,577, 1,089,624.87 and 427,007.94 is: 589,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,577 : 1,089,624.87 = 427,007.94 : x
  2. Step 2: Convert to fraction form
    789,577/1,089,624.87 = 427,007.94/x
  3. Step 3: Cross multiply
    789,577x = 1,089,624.87 × 427,007.94
  4. Step 4: Simplify right side
    789,577x = 465,278,471,111.47
  5. Step 5: Solve for x
    x = 465,278,471,111.47/789,577
  6. Step 6: Final answer
    x = 589,275.61

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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.