Home / 1,213,011.74-1,673,929.44-669,147.98

Finding the Fourth Proportional to 1,213,011.74, 1,673,929.44 and 669,147.98

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Solution

The fourth proportional to 1,213,011.74, 1,673,929.44 and 669,147.98 is: 923,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,011.74 : 1,673,929.44 = 669,147.98 : x
  2. Step 2: Convert to fraction form
    1,213,011.74/1,673,929.44 = 669,147.98/x
  3. Step 3: Cross multiply
    1,213,011.74x = 1,673,929.44 × 669,147.98
  4. Step 4: Simplify right side
    1,213,011.74x = 1,120,106,503,438.53
  5. Step 5: Solve for x
    x = 1,120,106,503,438.53/1,213,011.74
  6. Step 6: Final answer
    x = 923,409.45

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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.