Home / 1,405,212.67-2,107,877.28-407,940.67

Finding the Fourth Proportional to 1,405,212.67, 2,107,877.28 and 407,940.67

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Solution

The fourth proportional to 1,405,212.67, 2,107,877.28 and 407,940.67 is: 611,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,212.67 : 2,107,877.28 = 407,940.67 : x
  2. Step 2: Convert to fraction form
    1,405,212.67/2,107,877.28 = 407,940.67/x
  3. Step 3: Cross multiply
    1,405,212.67x = 2,107,877.28 × 407,940.67
  4. Step 4: Simplify right side
    1,405,212.67x = 859,888,869,880.98
  5. Step 5: Solve for x
    x = 859,888,869,880.98/1,405,212.67
  6. Step 6: Final answer
    x = 611,927.92

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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.