Home / 628,477.92-867,317.78-342,016.48

Finding the Fourth Proportional to 628,477.92, 867,317.78 and 342,016.48

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Solution

The fourth proportional to 628,477.92, 867,317.78 and 342,016.48 is: 471,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,477.92 : 867,317.78 = 342,016.48 : x
  2. Step 2: Convert to fraction form
    628,477.92/867,317.78 = 342,016.48/x
  3. Step 3: Cross multiply
    628,477.92x = 867,317.78 × 342,016.48
  4. Step 4: Simplify right side
    628,477.92x = 296,636,974,157.01
  5. Step 5: Solve for x
    x = 296,636,974,157.01/628,477.92
  6. Step 6: Final answer
    x = 471,992.67

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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.