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Finding the Fourth Proportional to 554,289.60, 829,358.40 and 394,734.40

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Solution

The fourth proportional to 554,289.60, 829,358.40 and 394,734.40 is: 590,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,289.60 : 829,358.40 = 394,734.40 : x
  2. Step 2: Convert to fraction form
    554,289.60/829,358.40 = 394,734.40/x
  3. Step 3: Cross multiply
    554,289.60x = 829,358.40 × 394,734.40
  4. Step 4: Simplify right side
    554,289.60x = 327,376,290,408.96
  5. Step 5: Solve for x
    x = 327,376,290,408.96/554,289.60
  6. Step 6: Final answer
    x = 590,623.19

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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.