Home / 848,132.10-1,272,198.15-287,166.60

Finding the Fourth Proportional to 848,132.10, 1,272,198.15 and 287,166.60

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Solution

The fourth proportional to 848,132.10, 1,272,198.15 and 287,166.60 is: 430,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,132.10 : 1,272,198.15 = 287,166.60 : x
  2. Step 2: Convert to fraction form
    848,132.10/1,272,198.15 = 287,166.60/x
  3. Step 3: Cross multiply
    848,132.10x = 1,272,198.15 × 287,166.60
  4. Step 4: Simplify right side
    848,132.10x = 365,332,817,261.79
  5. Step 5: Solve for x
    x = 365,332,817,261.79/848,132.10
  6. Step 6: Final answer
    x = 430,749.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.