Home / 874,621.80-1,206,565.62-511,823.22

Finding the Fourth Proportional to 874,621.80, 1,206,565.62 and 511,823.22

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Solution

The fourth proportional to 874,621.80, 1,206,565.62 and 511,823.22 is: 706,074.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,621.80 : 1,206,565.62 = 511,823.22 : x
  2. Step 2: Convert to fraction form
    874,621.80/1,206,565.62 = 511,823.22/x
  3. Step 3: Cross multiply
    874,621.80x = 1,206,565.62 × 511,823.22
  4. Step 4: Simplify right side
    874,621.80x = 617,548,300,769.70
  5. Step 5: Solve for x
    x = 617,548,300,769.70/874,621.80
  6. Step 6: Final answer
    x = 706,074.67

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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.