Home / 543,629.20-814,925.40-423,619.60

Finding the Fourth Proportional to 543,629.20, 814,925.40 and 423,619.60

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Solution

The fourth proportional to 543,629.20, 814,925.40 and 423,619.60 is: 635,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,629.20 : 814,925.40 = 423,619.60 : x
  2. Step 2: Convert to fraction form
    543,629.20/814,925.40 = 423,619.60/x
  3. Step 3: Cross multiply
    543,629.20x = 814,925.40 × 423,619.60
  4. Step 4: Simplify right side
    543,629.20x = 345,218,371,977.84
  5. Step 5: Solve for x
    x = 345,218,371,977.84/543,629.20
  6. Step 6: Final answer
    x = 635,025.44

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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.