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Finding the Fourth Proportional to 554,304.60, 829,380.90 and 394,749.40

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Solution

The fourth proportional to 554,304.60, 829,380.90 and 394,749.40 is: 590,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,304.60 : 829,380.90 = 394,749.40 : x
  2. Step 2: Convert to fraction form
    554,304.60/829,380.90 = 394,749.40/x
  3. Step 3: Cross multiply
    554,304.60x = 829,380.90 × 394,749.40
  4. Step 4: Simplify right side
    554,304.60x = 327,397,612,646.46
  5. Step 5: Solve for x
    x = 327,397,612,646.46/554,304.60
  6. Step 6: Final answer
    x = 590,645.67

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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.