Home / 789,098.38-1,089,062.48-445,005.11

Finding the Fourth Proportional to 789,098.38, 1,089,062.48 and 445,005.11

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Solution

The fourth proportional to 789,098.38, 1,089,062.48 and 445,005.11 is: 614,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,098.38 : 1,089,062.48 = 445,005.11 : x
  2. Step 2: Convert to fraction form
    789,098.38/1,089,062.48 = 445,005.11/x
  3. Step 3: Cross multiply
    789,098.38x = 1,089,062.48 × 445,005.11
  4. Step 4: Simplify right side
    789,098.38x = 484,638,368,709.27
  5. Step 5: Solve for x
    x = 484,638,368,709.27/789,098.38
  6. Step 6: Final answer
    x = 614,167.23

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Half scale
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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.