Home / 837,147.10-1,155,231.15-455,174.20

Finding the Fourth Proportional to 837,147.10, 1,155,231.15 and 455,174.20

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Solution

The fourth proportional to 837,147.10, 1,155,231.15 and 455,174.20 is: 628,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,147.10 : 1,155,231.15 = 455,174.20 : x
  2. Step 2: Convert to fraction form
    837,147.10/1,155,231.15 = 455,174.20/x
  3. Step 3: Cross multiply
    837,147.10x = 1,155,231.15 × 455,174.20
  4. Step 4: Simplify right side
    837,147.10x = 525,831,414,516.33
  5. Step 5: Solve for x
    x = 525,831,414,516.33/837,147.10
  6. Step 6: Final answer
    x = 628,123.08

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Double scale
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Similar ratio
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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.