Home / 728,198.04-1,091,539.23-407,880.30

Finding the Fourth Proportional to 728,198.04, 1,091,539.23 and 407,880.30

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Solution

The fourth proportional to 728,198.04, 1,091,539.23 and 407,880.30 is: 611,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,198.04 : 1,091,539.23 = 407,880.30 : x
  2. Step 2: Convert to fraction form
    728,198.04/1,091,539.23 = 407,880.30/x
  3. Step 3: Cross multiply
    728,198.04x = 1,091,539.23 × 407,880.30
  4. Step 4: Simplify right side
    728,198.04x = 445,217,348,594.17
  5. Step 5: Solve for x
    x = 445,217,348,594.17/728,198.04
  6. Step 6: Final answer
    x = 611,395.97

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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.