Home / 1,210,622.10-1,815,928.29-369,171.42

Finding the Fourth Proportional to 1,210,622.10, 1,815,928.29 and 369,171.42

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Solution

The fourth proportional to 1,210,622.10, 1,815,928.29 and 369,171.42 is: 553,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,622.10 : 1,815,928.29 = 369,171.42 : x
  2. Step 2: Convert to fraction form
    1,210,622.10/1,815,928.29 = 369,171.42/x
  3. Step 3: Cross multiply
    1,210,622.10x = 1,815,928.29 × 369,171.42
  4. Step 4: Simplify right side
    1,210,622.10x = 670,388,825,437.47
  5. Step 5: Solve for x
    x = 670,388,825,437.47/1,210,622.10
  6. Step 6: Final answer
    x = 553,755.65

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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.