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Finding the Fourth Proportional to 706,429.09, 974,861.03 and 384,136.37

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Solution

The fourth proportional to 706,429.09, 974,861.03 and 384,136.37 is: 530,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,429.09 : 974,861.03 = 384,136.37 : x
  2. Step 2: Convert to fraction form
    706,429.09/974,861.03 = 384,136.37/x
  3. Step 3: Cross multiply
    706,429.09x = 974,861.03 × 384,136.37
  4. Step 4: Simplify right side
    706,429.09x = 374,479,577,318.66
  5. Step 5: Solve for x
    x = 374,479,577,318.66/706,429.09
  6. Step 6: Final answer
    x = 530,102.15

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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.