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Finding the Fourth Proportional to 451,608.40, 677,412.60 and 185,280.40

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Solution

The fourth proportional to 451,608.40, 677,412.60 and 185,280.40 is: 277,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,608.40 : 677,412.60 = 185,280.40 : x
  2. Step 2: Convert to fraction form
    451,608.40/677,412.60 = 185,280.40/x
  3. Step 3: Cross multiply
    451,608.40x = 677,412.60 × 185,280.40
  4. Step 4: Simplify right side
    451,608.40x = 125,511,277,493.04
  5. Step 5: Solve for x
    x = 125,511,277,493.04/451,608.40
  6. Step 6: Final answer
    x = 277,920.60

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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.