Home / 439,719.40-659,579.10-262,426.60

Finding the Fourth Proportional to 439,719.40, 659,579.10 and 262,426.60

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Solution

The fourth proportional to 439,719.40, 659,579.10 and 262,426.60 is: 393,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,719.40 : 659,579.10 = 262,426.60 : x
  2. Step 2: Convert to fraction form
    439,719.40/659,579.10 = 262,426.60/x
  3. Step 3: Cross multiply
    439,719.40x = 659,579.10 × 262,426.60
  4. Step 4: Simplify right side
    439,719.40x = 173,091,100,644.06
  5. Step 5: Solve for x
    x = 173,091,100,644.06/439,719.40
  6. Step 6: Final answer
    x = 393,639.90

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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.