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Finding the Fourth Proportional to 545,903.40, 818,855.10 and 496,914.60

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Solution

The fourth proportional to 545,903.40, 818,855.10 and 496,914.60 is: 745,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,903.40 : 818,855.10 = 496,914.60 : x
  2. Step 2: Convert to fraction form
    545,903.40/818,855.10 = 496,914.60/x
  3. Step 3: Cross multiply
    545,903.40x = 818,855.10 × 496,914.60
  4. Step 4: Simplify right side
    545,903.40x = 406,901,054,474.46
  5. Step 5: Solve for x
    x = 406,901,054,474.46/545,903.40
  6. Step 6: Final answer
    x = 745,371.90

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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.