Home / 420,674.40-627,792.05-375,797.16

Finding the Fourth Proportional to 420,674.40, 627,792.05 and 375,797.16

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Solution

The fourth proportional to 420,674.40, 627,792.05 and 375,797.16 is: 560,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,674.40 : 627,792.05 = 375,797.16 : x
  2. Step 2: Convert to fraction form
    420,674.40/627,792.05 = 375,797.16/x
  3. Step 3: Cross multiply
    420,674.40x = 627,792.05 × 375,797.16
  4. Step 4: Simplify right side
    420,674.40x = 235,922,469,460.58
  5. Step 5: Solve for x
    x = 235,922,469,460.58/420,674.40
  6. Step 6: Final answer
    x = 560,819.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.