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Finding the Fourth Proportional to 611,792.40, 844,125.80 and 356,998.16

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Solution

The fourth proportional to 611,792.40, 844,125.80 and 356,998.16 is: 492,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,792.40 : 844,125.80 = 356,998.16 : x
  2. Step 2: Convert to fraction form
    611,792.40/844,125.80 = 356,998.16/x
  3. Step 3: Cross multiply
    611,792.40x = 844,125.80 × 356,998.16
  4. Step 4: Simplify right side
    611,792.40x = 301,351,357,408.53
  5. Step 5: Solve for x
    x = 301,351,357,408.53/611,792.40
  6. Step 6: Final answer
    x = 492,571.27

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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.