Home / 648,277.20-973,290.60-515,307.60

Finding the Fourth Proportional to 648,277.20, 973,290.60 and 515,307.60

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Solution

The fourth proportional to 648,277.20, 973,290.60 and 515,307.60 is: 773,656.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,277.20 : 973,290.60 = 515,307.60 : x
  2. Step 2: Convert to fraction form
    648,277.20/973,290.60 = 515,307.60/x
  3. Step 3: Cross multiply
    648,277.20x = 973,290.60 × 515,307.60
  4. Step 4: Simplify right side
    648,277.20x = 501,544,043,188.56
  5. Step 5: Solve for x
    x = 501,544,043,188.56/648,277.20
  6. Step 6: Final answer
    x = 773,656.77

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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.