Home / 1,315,340.12-1,973,078.22-416,877.32

Finding the Fourth Proportional to 1,315,340.12, 1,973,078.22 and 416,877.32

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Solution

The fourth proportional to 1,315,340.12, 1,973,078.22 and 416,877.32 is: 625,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,340.12 : 1,973,078.22 = 416,877.32 : x
  2. Step 2: Convert to fraction form
    1,315,340.12/1,973,078.22 = 416,877.32/x
  3. Step 3: Cross multiply
    1,315,340.12x = 1,973,078.22 × 416,877.32
  4. Step 4: Simplify right side
    1,315,340.12x = 822,531,560,503.97
  5. Step 5: Solve for x
    x = 822,531,560,503.97/1,315,340.12
  6. Step 6: Final answer
    x = 625,337.54

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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.