Home / 1,210,728.80-1,814,797.20-411,269.60

Finding the Fourth Proportional to 1,210,728.80, 1,814,797.20 and 411,269.60

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Solution

The fourth proportional to 1,210,728.80, 1,814,797.20 and 411,269.60 is: 616,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,728.80 : 1,814,797.20 = 411,269.60 : x
  2. Step 2: Convert to fraction form
    1,210,728.80/1,814,797.20 = 411,269.60/x
  3. Step 3: Cross multiply
    1,210,728.80x = 1,814,797.20 × 411,269.60
  4. Step 4: Simplify right side
    1,210,728.80x = 746,370,918,525.12
  5. Step 5: Solve for x
    x = 746,370,918,525.12/1,210,728.80
  6. Step 6: Final answer
    x = 616,464.16

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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.