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Finding the Fourth Proportional to 499,959, 689,943.42 and 273,604.50

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Solution

The fourth proportional to 499,959, 689,943.42 and 273,604.50 is: 377,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,959 : 689,943.42 = 273,604.50 : x
  2. Step 2: Convert to fraction form
    499,959/689,943.42 = 273,604.50/x
  3. Step 3: Cross multiply
    499,959x = 689,943.42 × 273,604.50
  4. Step 4: Simplify right side
    499,959x = 188,771,624,457.39
  5. Step 5: Solve for x
    x = 188,771,624,457.39/499,959
  6. Step 6: Final answer
    x = 377,574.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.