Home / 802,493.40-1,203,351.30-447,130.20

Finding the Fourth Proportional to 802,493.40, 1,203,351.30 and 447,130.20

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Solution

The fourth proportional to 802,493.40, 1,203,351.30 and 447,130.20 is: 670,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,493.40 : 1,203,351.30 = 447,130.20 : x
  2. Step 2: Convert to fraction form
    802,493.40/1,203,351.30 = 447,130.20/x
  3. Step 3: Cross multiply
    802,493.40x = 1,203,351.30 × 447,130.20
  4. Step 4: Simplify right side
    802,493.40x = 538,054,707,439.26
  5. Step 5: Solve for x
    x = 538,054,707,439.26/802,493.40
  6. Step 6: Final answer
    x = 670,478.67

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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.