Home / 1,297,452.20-1,946,364.30-398,969.40

Finding the Fourth Proportional to 1,297,452.20, 1,946,364.30 and 398,969.40

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Solution

The fourth proportional to 1,297,452.20, 1,946,364.30 and 398,969.40 is: 598,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,452.20 : 1,946,364.30 = 398,969.40 : x
  2. Step 2: Convert to fraction form
    1,297,452.20/1,946,364.30 = 398,969.40/x
  3. Step 3: Cross multiply
    1,297,452.20x = 1,946,364.30 × 398,969.40
  4. Step 4: Simplify right side
    1,297,452.20x = 776,539,796,952.42
  5. Step 5: Solve for x
    x = 776,539,796,952.42/1,297,452.20
  6. Step 6: Final answer
    x = 598,511.30

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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.