Home / 427,964.20-641,946.30-260,002.60

Finding the Fourth Proportional to 427,964.20, 641,946.30 and 260,002.60

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Solution

The fourth proportional to 427,964.20, 641,946.30 and 260,002.60 is: 390,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,964.20 : 641,946.30 = 260,002.60 : x
  2. Step 2: Convert to fraction form
    427,964.20/641,946.30 = 260,002.60/x
  3. Step 3: Cross multiply
    427,964.20x = 641,946.30 × 260,002.60
  4. Step 4: Simplify right side
    427,964.20x = 166,907,707,060.38
  5. Step 5: Solve for x
    x = 166,907,707,060.38/427,964.20
  6. Step 6: Final answer
    x = 390,003.90

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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.