Home / 1,340,890.47-2,012,599.71-488,785.71

Finding the Fourth Proportional to 1,340,890.47, 2,012,599.71 and 488,785.71

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Solution

The fourth proportional to 1,340,890.47, 2,012,599.71 and 488,785.71 is: 733,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,890.47 : 2,012,599.71 = 488,785.71 : x
  2. Step 2: Convert to fraction form
    1,340,890.47/2,012,599.71 = 488,785.71/x
  3. Step 3: Cross multiply
    1,340,890.47x = 2,012,599.71 × 488,785.71
  4. Step 4: Simplify right side
    1,340,890.47x = 983,729,978,198.14
  5. Step 5: Solve for x
    x = 983,729,978,198.14/1,340,890.47
  6. Step 6: Final answer
    x = 733,639.32

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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.