Home / 1,239,300.40-1,858,912.20-352,836.40

Finding the Fourth Proportional to 1,239,300.40, 1,858,912.20 and 352,836.40

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Solution

The fourth proportional to 1,239,300.40, 1,858,912.20 and 352,836.40 is: 529,243.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,300.40 : 1,858,912.20 = 352,836.40 : x
  2. Step 2: Convert to fraction form
    1,239,300.40/1,858,912.20 = 352,836.40/x
  3. Step 3: Cross multiply
    1,239,300.40x = 1,858,912.20 × 352,836.40
  4. Step 4: Simplify right side
    1,239,300.40x = 655,891,888,564.08
  5. Step 5: Solve for x
    x = 655,891,888,564.08/1,239,300.40
  6. Step 6: Final answer
    x = 529,243.67

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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.