Home / 1,066,422.30-1,600,037.46-640,255.71

Finding the Fourth Proportional to 1,066,422.30, 1,600,037.46 and 640,255.71

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Solution

The fourth proportional to 1,066,422.30, 1,600,037.46 and 640,255.71 is: 960,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,422.30 : 1,600,037.46 = 640,255.71 : x
  2. Step 2: Convert to fraction form
    1,066,422.30/1,600,037.46 = 640,255.71/x
  3. Step 3: Cross multiply
    1,066,422.30x = 1,600,037.46 × 640,255.71
  4. Step 4: Simplify right side
    1,066,422.30x = 1,024,433,119,978.90
  5. Step 5: Solve for x
    x = 1,024,433,119,978.90/1,066,422.30
  6. Step 6: Final answer
    x = 960,626.12

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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.