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Finding the Fourth Proportional to 446,750.60, 670,125.90 and 399,511.40

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Solution

The fourth proportional to 446,750.60, 670,125.90 and 399,511.40 is: 599,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,750.60 : 670,125.90 = 399,511.40 : x
  2. Step 2: Convert to fraction form
    446,750.60/670,125.90 = 399,511.40/x
  3. Step 3: Cross multiply
    446,750.60x = 670,125.90 × 399,511.40
  4. Step 4: Simplify right side
    446,750.60x = 267,722,936,485.26
  5. Step 5: Solve for x
    x = 267,722,936,485.26/446,750.60
  6. Step 6: Final answer
    x = 599,267.10

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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.