Home / 1,210,629.20-1,815,252.60-499,816.40

Finding the Fourth Proportional to 1,210,629.20, 1,815,252.60 and 499,816.40

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Solution

The fourth proportional to 1,210,629.20, 1,815,252.60 and 499,816.40 is: 749,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,629.20 : 1,815,252.60 = 499,816.40 : x
  2. Step 2: Convert to fraction form
    1,210,629.20/1,815,252.60 = 499,816.40/x
  3. Step 3: Cross multiply
    1,210,629.20x = 1,815,252.60 × 499,816.40
  4. Step 4: Simplify right side
    1,210,629.20x = 907,293,019,622.64
  5. Step 5: Solve for x
    x = 907,293,019,622.64/1,210,629.20
  6. Step 6: Final answer
    x = 749,439.23

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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.