Home / 439,719.40-659,579.10-333,431.20

Finding the Fourth Proportional to 439,719.40, 659,579.10 and 333,431.20

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Solution

The fourth proportional to 439,719.40, 659,579.10 and 333,431.20 is: 500,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,719.40 : 659,579.10 = 333,431.20 : x
  2. Step 2: Convert to fraction form
    439,719.40/659,579.10 = 333,431.20/x
  3. Step 3: Cross multiply
    439,719.40x = 659,579.10 × 333,431.20
  4. Step 4: Simplify right side
    439,719.40x = 219,924,250,807.92
  5. Step 5: Solve for x
    x = 219,924,250,807.92/439,719.40
  6. Step 6: Final answer
    x = 500,146.80

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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.