Home / 1,072,315.56-1,607,982.84-640,229.16

Finding the Fourth Proportional to 1,072,315.56, 1,607,982.84 and 640,229.16

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Solution

The fourth proportional to 1,072,315.56, 1,607,982.84 and 640,229.16 is: 960,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,315.56 : 1,607,982.84 = 640,229.16 : x
  2. Step 2: Convert to fraction form
    1,072,315.56/1,607,982.84 = 640,229.16/x
  3. Step 3: Cross multiply
    1,072,315.56x = 1,607,982.84 × 640,229.16
  4. Step 4: Simplify right side
    1,072,315.56x = 1,029,477,508,977.55
  5. Step 5: Solve for x
    x = 1,029,477,508,977.55/1,072,315.56
  6. Step 6: Final answer
    x = 960,050.89

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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.