Home / 938,450.40-1,407,678.48-228,478.56

Finding the Fourth Proportional to 938,450.40, 1,407,678.48 and 228,478.56

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Solution

The fourth proportional to 938,450.40, 1,407,678.48 and 228,478.56 is: 342,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,450.40 : 1,407,678.48 = 228,478.56 : x
  2. Step 2: Convert to fraction form
    938,450.40/1,407,678.48 = 228,478.56/x
  3. Step 3: Cross multiply
    938,450.40x = 1,407,678.48 × 228,478.56
  4. Step 4: Simplify right side
    938,450.40x = 321,624,352,053.39
  5. Step 5: Solve for x
    x = 321,624,352,053.39/938,450.40
  6. Step 6: Final answer
    x = 342,718.54

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1.5x scale

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.