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Finding the Fourth Proportional to 492,750.60, 739,125.90 and 445,511.40

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Solution

The fourth proportional to 492,750.60, 739,125.90 and 445,511.40 is: 668,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,750.60 : 739,125.90 = 445,511.40 : x
  2. Step 2: Convert to fraction form
    492,750.60/739,125.90 = 445,511.40/x
  3. Step 3: Cross multiply
    492,750.60x = 739,125.90 × 445,511.40
  4. Step 4: Simplify right side
    492,750.60x = 329,289,014,485.26
  5. Step 5: Solve for x
    x = 329,289,014,485.26/492,750.60
  6. Step 6: Final answer
    x = 668,267.10

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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.