Home / 420,224.45-579,911.45-229,241.84

Finding the Fourth Proportional to 420,224.45, 579,911.45 and 229,241.84

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Solution

The fourth proportional to 420,224.45, 579,911.45 and 229,241.84 is: 316,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,224.45 : 579,911.45 = 229,241.84 : x
  2. Step 2: Convert to fraction form
    420,224.45/579,911.45 = 229,241.84/x
  3. Step 3: Cross multiply
    420,224.45x = 579,911.45 × 229,241.84
  4. Step 4: Simplify right side
    420,224.45x = 132,939,963,789.30
  5. Step 5: Solve for x
    x = 132,939,963,789.30/420,224.45
  6. Step 6: Final answer
    x = 316,354.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.