Home / 769,932.40-1,062,137.64-498,085.60

Finding the Fourth Proportional to 769,932.40, 1,062,137.64 and 498,085.60

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Solution

The fourth proportional to 769,932.40, 1,062,137.64 and 498,085.60 is: 687,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,932.40 : 1,062,137.64 = 498,085.60 : x
  2. Step 2: Convert to fraction form
    769,932.40/1,062,137.64 = 498,085.60/x
  3. Step 3: Cross multiply
    769,932.40x = 1,062,137.64 × 498,085.60
  4. Step 4: Simplify right side
    769,932.40x = 529,035,463,701.98
  5. Step 5: Solve for x
    x = 529,035,463,701.98/769,932.40
  6. Step 6: Final answer
    x = 687,119.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.