Home / 848,309.64-1,272,431.16-287,344.12

Finding the Fourth Proportional to 848,309.64, 1,272,431.16 and 287,344.12

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Solution

The fourth proportional to 848,309.64, 1,272,431.16 and 287,344.12 is: 431,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,309.64 : 1,272,431.16 = 287,344.12 : x
  2. Step 2: Convert to fraction form
    848,309.64/1,272,431.16 = 287,344.12/x
  3. Step 3: Cross multiply
    848,309.64x = 1,272,431.16 × 287,344.12
  4. Step 4: Simplify right side
    848,309.64x = 365,625,611,930.78
  5. Step 5: Solve for x
    x = 365,625,611,930.78/848,309.64
  6. Step 6: Final answer
    x = 431,004.90

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Double scale
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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.