Home / 1,489,619.70-2,234,429.55-779,865.30

Finding the Fourth Proportional to 1,489,619.70, 2,234,429.55 and 779,865.30

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Solution

The fourth proportional to 1,489,619.70, 2,234,429.55 and 779,865.30 is: 1,169,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,619.70 : 2,234,429.55 = 779,865.30 : x
  2. Step 2: Convert to fraction form
    1,489,619.70/2,234,429.55 = 779,865.30/x
  3. Step 3: Cross multiply
    1,489,619.70x = 2,234,429.55 × 779,865.30
  4. Step 4: Simplify right side
    1,489,619.70x = 1,742,554,071,339.62
  5. Step 5: Solve for x
    x = 1,742,554,071,339.62/1,489,619.70
  6. Step 6: Final answer
    x = 1,169,797.95

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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.