Home / 1,208,180.90-1,812,146.52-409,441.70

Finding the Fourth Proportional to 1,208,180.90, 1,812,146.52 and 409,441.70

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Solution

The fourth proportional to 1,208,180.90, 1,812,146.52 and 409,441.70 is: 614,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,180.90 : 1,812,146.52 = 409,441.70 : x
  2. Step 2: Convert to fraction form
    1,208,180.90/1,812,146.52 = 409,441.70/x
  3. Step 3: Cross multiply
    1,208,180.90x = 1,812,146.52 × 409,441.70
  4. Step 4: Simplify right side
    1,208,180.90x = 741,968,351,797.88
  5. Step 5: Solve for x
    x = 741,968,351,797.88/1,208,180.90
  6. Step 6: Final answer
    x = 614,120.25

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1.5x scale

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.