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Finding the Fourth Proportional to 499,770.02, 749,655.05 and 399,460.55

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Solution

The fourth proportional to 499,770.02, 749,655.05 and 399,460.55 is: 599,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,770.02 : 749,655.05 = 399,460.55 : x
  2. Step 2: Convert to fraction form
    499,770.02/749,655.05 = 399,460.55/x
  3. Step 3: Cross multiply
    499,770.02x = 749,655.05 × 399,460.55
  4. Step 4: Simplify right side
    499,770.02x = 299,457,612,837.70
  5. Step 5: Solve for x
    x = 299,457,612,837.70/499,770.02
  6. Step 6: Final answer
    x = 599,190.83

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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.