Home / 648,276.20-973,289.10-515,306.60

Finding the Fourth Proportional to 648,276.20, 973,289.10 and 515,306.60

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Solution

The fourth proportional to 648,276.20, 973,289.10 and 515,306.60 is: 773,655.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,276.20 : 973,289.10 = 515,306.60 : x
  2. Step 2: Convert to fraction form
    648,276.20/973,289.10 = 515,306.60/x
  3. Step 3: Cross multiply
    648,276.20x = 973,289.10 × 515,306.60
  4. Step 4: Simplify right side
    648,276.20x = 501,542,296,938.06
  5. Step 5: Solve for x
    x = 501,542,296,938.06/648,276.20
  6. Step 6: Final answer
    x = 773,655.27

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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.