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Finding the Fourth Proportional to 1,828,509.16, 2,743,884.81 and 818,485.13

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Solution

The fourth proportional to 1,828,509.16, 2,743,884.81 and 818,485.13 is: 1,228,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828,509.16 : 2,743,884.81 = 818,485.13 : x
  2. Step 2: Convert to fraction form
    1,828,509.16/2,743,884.81 = 818,485.13/x
  3. Step 3: Cross multiply
    1,828,509.16x = 2,743,884.81 × 818,485.13
  4. Step 4: Simplify right side
    1,828,509.16x = 2,245,828,911,988.02
  5. Step 5: Solve for x
    x = 2,245,828,911,988.02/1,828,509.16
  6. Step 6: Final answer
    x = 1,228,229.51

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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.