Home / 648,189.20-973,158.60-515,219.60

Finding the Fourth Proportional to 648,189.20, 973,158.60 and 515,219.60

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Solution

The fourth proportional to 648,189.20, 973,158.60 and 515,219.60 is: 773,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,189.20 : 973,158.60 = 515,219.60 : x
  2. Step 2: Convert to fraction form
    648,189.20/973,158.60 = 515,219.60/x
  3. Step 3: Cross multiply
    648,189.20x = 973,158.60 × 515,219.60
  4. Step 4: Simplify right side
    648,189.20x = 501,390,384,628.56
  5. Step 5: Solve for x
    x = 501,390,384,628.56/648,189.20
  6. Step 6: Final answer
    x = 773,524.74

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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.