Home / 789,864.81-1,090,007.85-427,283.29

Finding the Fourth Proportional to 789,864.81, 1,090,007.85 and 427,283.29

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Solution

The fourth proportional to 789,864.81, 1,090,007.85 and 427,283.29 is: 589,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,864.81 : 1,090,007.85 = 427,283.29 : x
  2. Step 2: Convert to fraction form
    789,864.81/1,090,007.85 = 427,283.29/x
  3. Step 3: Cross multiply
    789,864.81x = 1,090,007.85 × 427,283.29
  4. Step 4: Simplify right side
    789,864.81x = 465,742,140,273.83
  5. Step 5: Solve for x
    x = 465,742,140,273.83/789,864.81
  6. Step 6: Final answer
    x = 589,647.92

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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.