Home / 648,180.20-973,145.10-515,210.60

Finding the Fourth Proportional to 648,180.20, 973,145.10 and 515,210.60

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Solution

The fourth proportional to 648,180.20, 973,145.10 and 515,210.60 is: 773,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,180.20 : 973,145.10 = 515,210.60 : x
  2. Step 2: Convert to fraction form
    648,180.20/973,145.10 = 515,210.60/x
  3. Step 3: Cross multiply
    648,180.20x = 973,145.10 × 515,210.60
  4. Step 4: Simplify right side
    648,180.20x = 501,374,670,858.06
  5. Step 5: Solve for x
    x = 501,374,670,858.06/648,180.20
  6. Step 6: Final answer
    x = 773,511.24

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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.