Home / 995,455.40-1,493,375.10-426,828.20

Finding the Fourth Proportional to 995,455.40, 1,493,375.10 and 426,828.20

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Solution

The fourth proportional to 995,455.40, 1,493,375.10 and 426,828.20 is: 640,324.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,455.40 : 1,493,375.10 = 426,828.20 : x
  2. Step 2: Convert to fraction form
    995,455.40/1,493,375.10 = 426,828.20/x
  3. Step 3: Cross multiply
    995,455.40x = 1,493,375.10 × 426,828.20
  4. Step 4: Simplify right side
    995,455.40x = 637,414,605,857.82
  5. Step 5: Solve for x
    x = 637,414,605,857.82/995,455.40
  6. Step 6: Final answer
    x = 640,324.63

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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.