Home / 874,479.87-1,312,467.49-342,374.57

Finding the Fourth Proportional to 874,479.87, 1,312,467.49 and 342,374.57

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Solution

The fourth proportional to 874,479.87, 1,312,467.49 and 342,374.57 is: 513,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,479.87 : 1,312,467.49 = 342,374.57 : x
  2. Step 2: Convert to fraction form
    874,479.87/1,312,467.49 = 342,374.57/x
  3. Step 3: Cross multiply
    874,479.87x = 1,312,467.49 × 342,374.57
  4. Step 4: Simplify right side
    874,479.87x = 449,355,492,527.73
  5. Step 5: Solve for x
    x = 449,355,492,527.73/874,479.87
  6. Step 6: Final answer
    x = 513,854.59

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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.