Home / 1,210,431.80-1,815,647.70-368,982.20

Finding the Fourth Proportional to 1,210,431.80, 1,815,647.70 and 368,982.20

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Solution

The fourth proportional to 1,210,431.80, 1,815,647.70 and 368,982.20 is: 553,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,431.80 : 1,815,647.70 = 368,982.20 : x
  2. Step 2: Convert to fraction form
    1,210,431.80/1,815,647.70 = 368,982.20/x
  3. Step 3: Cross multiply
    1,210,431.80x = 1,815,647.70 × 368,982.20
  4. Step 4: Simplify right side
    1,210,431.80x = 669,941,682,770.94
  5. Step 5: Solve for x
    x = 669,941,682,770.94/1,210,431.80
  6. Step 6: Final answer
    x = 553,473.30

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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.