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Finding the Fourth Proportional to 706,379.38, 974,796.45 and 384,089.56

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Solution

The fourth proportional to 706,379.38, 974,796.45 and 384,089.56 is: 530,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,379.38 : 974,796.45 = 384,089.56 : x
  2. Step 2: Convert to fraction form
    706,379.38/974,796.45 = 384,089.56/x
  3. Step 3: Cross multiply
    706,379.38x = 974,796.45 × 384,089.56
  4. Step 4: Simplify right side
    706,379.38x = 374,409,139,570.06
  5. Step 5: Solve for x
    x = 374,409,139,570.06/706,379.38
  6. Step 6: Final answer
    x = 530,039.74

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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.