Home / 1,315,422.68-1,973,189.38-416,899.89

Finding the Fourth Proportional to 1,315,422.68, 1,973,189.38 and 416,899.89

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Solution

The fourth proportional to 1,315,422.68, 1,973,189.38 and 416,899.89 is: 625,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,422.68 : 1,973,189.38 = 416,899.89 : x
  2. Step 2: Convert to fraction form
    1,315,422.68/1,973,189.38 = 416,899.89/x
  3. Step 3: Cross multiply
    1,315,422.68x = 1,973,189.38 × 416,899.89
  4. Step 4: Simplify right side
    1,315,422.68x = 822,622,435,471.17
  5. Step 5: Solve for x
    x = 822,622,435,471.17/1,315,422.68
  6. Step 6: Final answer
    x = 625,367.38

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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.