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Finding the Fourth Proportional to 492,032.60, 738,048.90 and 339,817.40

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Solution

The fourth proportional to 492,032.60, 738,048.90 and 339,817.40 is: 509,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,032.60 : 738,048.90 = 339,817.40 : x
  2. Step 2: Convert to fraction form
    492,032.60/738,048.90 = 339,817.40/x
  3. Step 3: Cross multiply
    492,032.60x = 738,048.90 × 339,817.40
  4. Step 4: Simplify right side
    492,032.60x = 250,801,858,270.86
  5. Step 5: Solve for x
    x = 250,801,858,270.86/492,032.60
  6. Step 6: Final answer
    x = 509,726.10

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Similar ratio
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1.5x scale

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.