Home / 450,202.45-620,671.41-288,777.28

Finding the Fourth Proportional to 450,202.45, 620,671.41 and 288,777.28

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Solution

The fourth proportional to 450,202.45, 620,671.41 and 288,777.28 is: 398,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,202.45 : 620,671.41 = 288,777.28 : x
  2. Step 2: Convert to fraction form
    450,202.45/620,671.41 = 288,777.28/x
  3. Step 3: Cross multiply
    450,202.45x = 620,671.41 × 288,777.28
  4. Step 4: Simplify right side
    450,202.45x = 179,235,801,553.57
  5. Step 5: Solve for x
    x = 179,235,801,553.57/450,202.45
  6. Step 6: Final answer
    x = 398,122.67

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1.5x scale

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.