Home / 1,639,643.70-2,458,299.15-628,374.90

Finding the Fourth Proportional to 1,639,643.70, 2,458,299.15 and 628,374.90

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Solution

The fourth proportional to 1,639,643.70, 2,458,299.15 and 628,374.90 is: 942,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,643.70 : 2,458,299.15 = 628,374.90 : x
  2. Step 2: Convert to fraction form
    1,639,643.70/2,458,299.15 = 628,374.90/x
  3. Step 3: Cross multiply
    1,639,643.70x = 2,458,299.15 × 628,374.90
  4. Step 4: Simplify right side
    1,639,643.70x = 1,544,733,482,551.34
  5. Step 5: Solve for x
    x = 1,544,733,482,551.34/1,639,643.70
  6. Step 6: Final answer
    x = 942,115.34

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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.