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Finding the Fourth Proportional to 524,745.90, 787,040.37 and 145,626.66

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Solution

The fourth proportional to 524,745.90, 787,040.37 and 145,626.66 is: 218,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,745.90 : 787,040.37 = 145,626.66 : x
  2. Step 2: Convert to fraction form
    524,745.90/787,040.37 = 145,626.66/x
  3. Step 3: Cross multiply
    524,745.90x = 787,040.37 × 145,626.66
  4. Step 4: Simplify right side
    524,745.90x = 114,614,060,368.26
  5. Step 5: Solve for x
    x = 114,614,060,368.26/524,745.90
  6. Step 6: Final answer
    x = 218,418.21

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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.