Home / 789,888.69-1,090,041.93-427,311.36

Finding the Fourth Proportional to 789,888.69, 1,090,041.93 and 427,311.36

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Solution

The fourth proportional to 789,888.69, 1,090,041.93 and 427,311.36 is: 589,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,888.69 : 1,090,041.93 = 427,311.36 : x
  2. Step 2: Convert to fraction form
    789,888.69/1,090,041.93 = 427,311.36/x
  3. Step 3: Cross multiply
    789,888.69x = 1,090,041.93 × 427,311.36
  4. Step 4: Simplify right side
    789,888.69x = 465,787,299,565.33
  5. Step 5: Solve for x
    x = 465,787,299,565.33/789,888.69
  6. Step 6: Final answer
    x = 589,687.26

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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.