Home / 789,886.68-1,090,038.54-427,309.08

Finding the Fourth Proportional to 789,886.68, 1,090,038.54 and 427,309.08

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Solution

The fourth proportional to 789,886.68, 1,090,038.54 and 427,309.08 is: 589,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,886.68 : 1,090,038.54 = 427,309.08 : x
  2. Step 2: Convert to fraction form
    789,886.68/1,090,038.54 = 427,309.08/x
  3. Step 3: Cross multiply
    789,886.68x = 1,090,038.54 × 427,309.08
  4. Step 4: Simplify right side
    789,886.68x = 465,783,365,691.94
  5. Step 5: Solve for x
    x = 465,783,365,691.94/789,886.68
  6. Step 6: Final answer
    x = 589,683.78

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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.