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Finding the Fourth Proportional to 638,850.70, 957,661.65 and 496,617.10

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Solution

The fourth proportional to 638,850.70, 957,661.65 and 496,617.10 is: 744,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,850.70 : 957,661.65 = 496,617.10 : x
  2. Step 2: Convert to fraction form
    638,850.70/957,661.65 = 496,617.10/x
  3. Step 3: Cross multiply
    638,850.70x = 957,661.65 × 496,617.10
  4. Step 4: Simplify right side
    638,850.70x = 475,591,151,404.22
  5. Step 5: Solve for x
    x = 475,591,151,404.22/638,850.70
  6. Step 6: Final answer
    x = 744,448.04

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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.