Home / 719,819.72-1,078,899.09-270,253.86

Finding the Fourth Proportional to 719,819.72, 1,078,899.09 and 270,253.86

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Solution

The fourth proportional to 719,819.72, 1,078,899.09 and 270,253.86 is: 405,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,819.72 : 1,078,899.09 = 270,253.86 : x
  2. Step 2: Convert to fraction form
    719,819.72/1,078,899.09 = 270,253.86/x
  3. Step 3: Cross multiply
    719,819.72x = 1,078,899.09 × 270,253.86
  4. Step 4: Simplify right side
    719,819.72x = 291,576,643,622.99
  5. Step 5: Solve for x
    x = 291,576,643,622.99/719,819.72
  6. Step 6: Final answer
    x = 405,068.99

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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.