Home / 1,298,438.20-1,947,684.98-445,506.15

Finding the Fourth Proportional to 1,298,438.20, 1,947,684.98 and 445,506.15

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Solution

The fourth proportional to 1,298,438.20, 1,947,684.98 and 445,506.15 is: 668,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,438.20 : 1,947,684.98 = 445,506.15 : x
  2. Step 2: Convert to fraction form
    1,298,438.20/1,947,684.98 = 445,506.15/x
  3. Step 3: Cross multiply
    1,298,438.20x = 1,947,684.98 × 445,506.15
  4. Step 4: Simplify right side
    1,298,438.20x = 867,705,627,114.20
  5. Step 5: Solve for x
    x = 867,705,627,114.20/1,298,438.20
  6. Step 6: Final answer
    x = 668,268.71

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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.