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Finding the Fourth Proportional to 609,328.70, 913,396.49 and 254,444.21

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Solution

The fourth proportional to 609,328.70, 913,396.49 and 254,444.21 is: 381,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,328.70 : 913,396.49 = 254,444.21 : x
  2. Step 2: Convert to fraction form
    609,328.70/913,396.49 = 254,444.21/x
  3. Step 3: Cross multiply
    609,328.70x = 913,396.49 × 254,444.21
  4. Step 4: Simplify right side
    609,328.70x = 232,408,450,280.26
  5. Step 5: Solve for x
    x = 232,408,450,280.26/609,328.70
  6. Step 6: Final answer
    x = 381,417.20

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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.