Home / 1,318,785.56-1,978,336.98-465,681.68

Finding the Fourth Proportional to 1,318,785.56, 1,978,336.98 and 465,681.68

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Solution

The fourth proportional to 1,318,785.56, 1,978,336.98 and 465,681.68 is: 698,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,785.56 : 1,978,336.98 = 465,681.68 : x
  2. Step 2: Convert to fraction form
    1,318,785.56/1,978,336.98 = 465,681.68/x
  3. Step 3: Cross multiply
    1,318,785.56x = 1,978,336.98 × 465,681.68
  4. Step 4: Simplify right side
    1,318,785.56x = 921,275,288,452.53
  5. Step 5: Solve for x
    x = 921,275,288,452.53/1,318,785.56
  6. Step 6: Final answer
    x = 698,578.54

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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.