Home / 905,440.70-1,357,316.82-305,982.65

Finding the Fourth Proportional to 905,440.70, 1,357,316.82 and 305,982.65

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Solution

The fourth proportional to 905,440.70, 1,357,316.82 and 305,982.65 is: 458,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,440.70 : 1,357,316.82 = 305,982.65 : x
  2. Step 2: Convert to fraction form
    905,440.70/1,357,316.82 = 305,982.65/x
  3. Step 3: Cross multiply
    905,440.70x = 1,357,316.82 × 305,982.65
  4. Step 4: Simplify right side
    905,440.70x = 415,315,390,686.59
  5. Step 5: Solve for x
    x = 415,315,390,686.59/905,440.70
  6. Step 6: Final answer
    x = 458,688.67

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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.