Home / 628,880.88-867,836.66-349,477.12

Finding the Fourth Proportional to 628,880.88, 867,836.66 and 349,477.12

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Solution

The fourth proportional to 628,880.88, 867,836.66 and 349,477.12 is: 482,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,880.88 : 867,836.66 = 349,477.12 : x
  2. Step 2: Convert to fraction form
    628,880.88/867,836.66 = 349,477.12/x
  3. Step 3: Cross multiply
    628,880.88x = 867,836.66 × 349,477.12
  4. Step 4: Simplify right side
    628,880.88x = 303,289,050,480.65
  5. Step 5: Solve for x
    x = 303,289,050,480.65/628,880.88
  6. Step 6: Final answer
    x = 482,267.88

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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.