Home / 789,880.14-1,090,037.25-427,305.51

Finding the Fourth Proportional to 789,880.14, 1,090,037.25 and 427,305.51

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Solution

The fourth proportional to 789,880.14, 1,090,037.25 and 427,305.51 is: 589,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,880.14 : 1,090,037.25 = 427,305.51 : x
  2. Step 2: Convert to fraction form
    789,880.14/1,090,037.25 = 427,305.51/x
  3. Step 3: Cross multiply
    789,880.14x = 1,090,037.25 × 427,305.51
  4. Step 4: Simplify right side
    789,880.14x = 465,778,923,030.25
  5. Step 5: Solve for x
    x = 465,778,923,030.25/789,880.14
  6. Step 6: Final answer
    x = 589,683.04

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1.5x scale

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.