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Finding the Fourth Proportional to 501,989.53, 692,745.56 and 275,635.03

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Solution

The fourth proportional to 501,989.53, 692,745.56 and 275,635.03 is: 380,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,989.53 : 692,745.56 = 275,635.03 : x
  2. Step 2: Convert to fraction form
    501,989.53/692,745.56 = 275,635.03/x
  3. Step 3: Cross multiply
    501,989.53x = 692,745.56 × 275,635.03
  4. Step 4: Simplify right side
    501,989.53x = 190,944,941,834.79
  5. Step 5: Solve for x
    x = 190,944,941,834.79/501,989.53
  6. Step 6: Final answer
    x = 380,376.34

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1.5x scale

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.