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Finding the Fourth Proportional to 563,670.40, 843,537.30 and 394,396.60

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Solution

The fourth proportional to 563,670.40, 843,537.30 and 394,396.60 is: 590,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,670.40 : 843,537.30 = 394,396.60 : x
  2. Step 2: Convert to fraction form
    563,670.40/843,537.30 = 394,396.60/x
  3. Step 3: Cross multiply
    563,670.40x = 843,537.30 × 394,396.60
  4. Step 4: Simplify right side
    563,670.40x = 332,688,243,093.18
  5. Step 5: Solve for x
    x = 332,688,243,093.18/563,670.40
  6. Step 6: Final answer
    x = 590,217.69

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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.