Home / 445,614.40-669,077.70-345,887.20

Finding the Fourth Proportional to 445,614.40, 669,077.70 and 345,887.20

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Solution

The fourth proportional to 445,614.40, 669,077.70 and 345,887.20 is: 519,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,614.40 : 669,077.70 = 345,887.20 : x
  2. Step 2: Convert to fraction form
    445,614.40/669,077.70 = 345,887.20/x
  3. Step 3: Cross multiply
    445,614.40x = 669,077.70 × 345,887.20
  4. Step 4: Simplify right side
    445,614.40x = 231,425,412,235.44
  5. Step 5: Solve for x
    x = 231,425,412,235.44/445,614.40
  6. Step 6: Final answer
    x = 519,340.07

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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.