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Finding the Fourth Proportional to 606,457.20, 907,936.20 and 543,471.60

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Solution

The fourth proportional to 606,457.20, 907,936.20 and 543,471.60 is: 813,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,457.20 : 907,936.20 = 543,471.60 : x
  2. Step 2: Convert to fraction form
    606,457.20/907,936.20 = 543,471.60/x
  3. Step 3: Cross multiply
    606,457.20x = 907,936.20 × 543,471.60
  4. Step 4: Simplify right side
    606,457.20x = 493,437,539,311.92
  5. Step 5: Solve for x
    x = 493,437,539,311.92/606,457.20
  6. Step 6: Final answer
    x = 813,639.51

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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.