Home / 851,942.40-1,277,913.60-326,630.40

Finding the Fourth Proportional to 851,942.40, 1,277,913.60 and 326,630.40

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Solution

The fourth proportional to 851,942.40, 1,277,913.60 and 326,630.40 is: 489,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,942.40 : 1,277,913.60 = 326,630.40 : x
  2. Step 2: Convert to fraction form
    851,942.40/1,277,913.60 = 326,630.40/x
  3. Step 3: Cross multiply
    851,942.40x = 1,277,913.60 × 326,630.40
  4. Step 4: Simplify right side
    851,942.40x = 417,405,430,333.44
  5. Step 5: Solve for x
    x = 417,405,430,333.44/851,942.40
  6. Step 6: Final answer
    x = 489,945.60

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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.