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Finding the Fourth Proportional to 609,840.30, 914,762.46 and 154,431.29

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Solution

The fourth proportional to 609,840.30, 914,762.46 and 154,431.29 is: 231,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,840.30 : 914,762.46 = 154,431.29 : x
  2. Step 2: Convert to fraction form
    609,840.30/914,762.46 = 154,431.29/x
  3. Step 3: Cross multiply
    609,840.30x = 914,762.46 × 154,431.29
  4. Step 4: Simplify right side
    609,840.30x = 141,267,949,607.40
  5. Step 5: Solve for x
    x = 141,267,949,607.40/609,840.30
  6. Step 6: Final answer
    x = 231,647.45

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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.