Home / 789,362.11-1,089,404.13-483,641.38

Finding the Fourth Proportional to 789,362.11, 1,089,404.13 and 483,641.38

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Solution

The fourth proportional to 789,362.11, 1,089,404.13 and 483,641.38 is: 667,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,362.11 : 1,089,404.13 = 483,641.38 : x
  2. Step 2: Convert to fraction form
    789,362.11/1,089,404.13 = 483,641.38/x
  3. Step 3: Cross multiply
    789,362.11x = 1,089,404.13 × 483,641.38
  4. Step 4: Simplify right side
    789,362.11x = 526,880,916,810.90
  5. Step 5: Solve for x
    x = 526,880,916,810.90/789,362.11
  6. Step 6: Final answer
    x = 667,476.83

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Double scale
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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.