Home / 789,866.48-1,090,012.44-427,289.45

Finding the Fourth Proportional to 789,866.48, 1,090,012.44 and 427,289.45

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Solution

The fourth proportional to 789,866.48, 1,090,012.44 and 427,289.45 is: 589,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,866.48 : 1,090,012.44 = 427,289.45 : x
  2. Step 2: Convert to fraction form
    789,866.48/1,090,012.44 = 427,289.45/x
  3. Step 3: Cross multiply
    789,866.48x = 1,090,012.44 × 427,289.45
  4. Step 4: Simplify right side
    789,866.48x = 465,750,812,133.03
  5. Step 5: Solve for x
    x = 465,750,812,133.03/789,866.48
  6. Step 6: Final answer
    x = 589,657.65

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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.