Home / 931,242.65-1,396,568.72-398,620.67

Finding the Fourth Proportional to 931,242.65, 1,396,568.72 and 398,620.67

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Solution

The fourth proportional to 931,242.65, 1,396,568.72 and 398,620.67 is: 597,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,242.65 : 1,396,568.72 = 398,620.67 : x
  2. Step 2: Convert to fraction form
    931,242.65/1,396,568.72 = 398,620.67/x
  3. Step 3: Cross multiply
    931,242.65x = 1,396,568.72 × 398,620.67
  4. Step 4: Simplify right side
    931,242.65x = 556,701,149,891.50
  5. Step 5: Solve for x
    x = 556,701,149,891.50/931,242.65
  6. Step 6: Final answer
    x = 597,804.61

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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.