Home / 648,200.70-973,175.85-515,231.10

Finding the Fourth Proportional to 648,200.70, 973,175.85 and 515,231.10

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Solution

The fourth proportional to 648,200.70, 973,175.85 and 515,231.10 is: 773,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,200.70 : 973,175.85 = 515,231.10 : x
  2. Step 2: Convert to fraction form
    648,200.70/973,175.85 = 515,231.10/x
  3. Step 3: Cross multiply
    648,200.70x = 973,175.85 × 515,231.10
  4. Step 4: Simplify right side
    648,200.70x = 501,410,463,688.94
  5. Step 5: Solve for x
    x = 501,410,463,688.94/648,200.70
  6. Step 6: Final answer
    x = 773,542.00

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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.