Home / 1,021,374.87-1,531,865.47-311,474.67

Finding the Fourth Proportional to 1,021,374.87, 1,531,865.47 and 311,474.67

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Solution

The fourth proportional to 1,021,374.87, 1,531,865.47 and 311,474.67 is: 467,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,374.87 : 1,531,865.47 = 311,474.67 : x
  2. Step 2: Convert to fraction form
    1,021,374.87/1,531,865.47 = 311,474.67/x
  3. Step 3: Cross multiply
    1,021,374.87x = 1,531,865.47 × 311,474.67
  4. Step 4: Simplify right side
    1,021,374.87x = 477,137,285,813.48
  5. Step 5: Solve for x
    x = 477,137,285,813.48/1,021,374.87
  6. Step 6: Final answer
    x = 467,151.97

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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.