Home / 818,825.40-1,229,505.30-445,577.40

Finding the Fourth Proportional to 818,825.40, 1,229,505.30 and 445,577.40

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Solution

The fourth proportional to 818,825.40, 1,229,505.30 and 445,577.40 is: 669,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,825.40 : 1,229,505.30 = 445,577.40 : x
  2. Step 2: Convert to fraction form
    818,825.40/1,229,505.30 = 445,577.40/x
  3. Step 3: Cross multiply
    818,825.40x = 1,229,505.30 × 445,577.40
  4. Step 4: Simplify right side
    818,825.40x = 547,839,774,860.22
  5. Step 5: Solve for x
    x = 547,839,774,860.22/818,825.40
  6. Step 6: Final answer
    x = 669,055.67

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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.