Home / 1,219,378.16-1,682,845.25-675,684.50

Finding the Fourth Proportional to 1,219,378.16, 1,682,845.25 and 675,684.50

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Solution

The fourth proportional to 1,219,378.16, 1,682,845.25 and 675,684.50 is: 932,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,378.16 : 1,682,845.25 = 675,684.50 : x
  2. Step 2: Convert to fraction form
    1,219,378.16/1,682,845.25 = 675,684.50/x
  3. Step 3: Cross multiply
    1,219,378.16x = 1,682,845.25 × 675,684.50
  4. Step 4: Simplify right side
    1,219,378.16x = 1,137,072,439,530.98
  5. Step 5: Solve for x
    x = 1,137,072,439,530.98/1,219,378.16
  6. Step 6: Final answer
    x = 932,501.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.