Home / 986,860.80-1,479,427.20-670,291.20

Finding the Fourth Proportional to 986,860.80, 1,479,427.20 and 670,291.20

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Solution

The fourth proportional to 986,860.80, 1,479,427.20 and 670,291.20 is: 1,004,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,860.80 : 1,479,427.20 = 670,291.20 : x
  2. Step 2: Convert to fraction form
    986,860.80/1,479,427.20 = 670,291.20/x
  3. Step 3: Cross multiply
    986,860.80x = 1,479,427.20 × 670,291.20
  4. Step 4: Simplify right side
    986,860.80x = 991,647,033,200.64
  5. Step 5: Solve for x
    x = 991,647,033,200.64/986,860.80
  6. Step 6: Final answer
    x = 1,004,849.96

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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.