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Finding the Fourth Proportional to 554,290.60, 829,359.90 and 394,735.40

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Solution

The fourth proportional to 554,290.60, 829,359.90 and 394,735.40 is: 590,624.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,290.60 : 829,359.90 = 394,735.40 : x
  2. Step 2: Convert to fraction form
    554,290.60/829,359.90 = 394,735.40/x
  3. Step 3: Cross multiply
    554,290.60x = 829,359.90 × 394,735.40
  4. Step 4: Simplify right side
    554,290.60x = 327,377,711,870.46
  5. Step 5: Solve for x
    x = 327,377,711,870.46/554,290.60
  6. Step 6: Final answer
    x = 590,624.69

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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.