Home / 775,890.56-1,070,121.04-531,020.16

Finding the Fourth Proportional to 775,890.56, 1,070,121.04 and 531,020.16

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Solution

The fourth proportional to 775,890.56, 1,070,121.04 and 531,020.16 is: 732,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,890.56 : 1,070,121.04 = 531,020.16 : x
  2. Step 2: Convert to fraction form
    775,890.56/1,070,121.04 = 531,020.16/x
  3. Step 3: Cross multiply
    775,890.56x = 1,070,121.04 × 531,020.16
  4. Step 4: Simplify right side
    775,890.56x = 568,255,845,880.17
  5. Step 5: Solve for x
    x = 568,255,845,880.17/775,890.56
  6. Step 6: Final answer
    x = 732,391.75

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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.