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Finding the Fourth Proportional to 454,018.80, 681,028.20 and 360,015.60

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Solution

The fourth proportional to 454,018.80, 681,028.20 and 360,015.60 is: 540,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,018.80 : 681,028.20 = 360,015.60 : x
  2. Step 2: Convert to fraction form
    454,018.80/681,028.20 = 360,015.60/x
  3. Step 3: Cross multiply
    454,018.80x = 681,028.20 × 360,015.60
  4. Step 4: Simplify right side
    454,018.80x = 245,180,776,039.92
  5. Step 5: Solve for x
    x = 245,180,776,039.92/454,018.80
  6. Step 6: Final answer
    x = 540,023.40

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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.