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Finding the Fourth Proportional to 545,910.40, 818,865.60 and 496,921.60

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Solution

The fourth proportional to 545,910.40, 818,865.60 and 496,921.60 is: 745,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,910.40 : 818,865.60 = 496,921.60 : x
  2. Step 2: Convert to fraction form
    545,910.40/818,865.60 = 496,921.60/x
  3. Step 3: Cross multiply
    545,910.40x = 818,865.60 × 496,921.60
  4. Step 4: Simplify right side
    545,910.40x = 406,912,004,136.96
  5. Step 5: Solve for x
    x = 406,912,004,136.96/545,910.40
  6. Step 6: Final answer
    x = 745,382.40

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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.