Home / 669,969.45-1,003,204.58-432,023.85

Finding the Fourth Proportional to 669,969.45, 1,003,204.58 and 432,023.85

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Solution

The fourth proportional to 669,969.45, 1,003,204.58 and 432,023.85 is: 646,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,969.45 : 1,003,204.58 = 432,023.85 : x
  2. Step 2: Convert to fraction form
    669,969.45/1,003,204.58 = 432,023.85/x
  3. Step 3: Cross multiply
    669,969.45x = 1,003,204.58 × 432,023.85
  4. Step 4: Simplify right side
    669,969.45x = 433,408,302,829.11
  5. Step 5: Solve for x
    x = 433,408,302,829.11/669,969.45
  6. Step 6: Final answer
    x = 646,907.56

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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.