Home / 775,485.82-1,070,088.60-431,265.88

Finding the Fourth Proportional to 775,485.82, 1,070,088.60 and 431,265.88

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Solution

The fourth proportional to 775,485.82, 1,070,088.60 and 431,265.88 is: 595,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,485.82 : 1,070,088.60 = 431,265.88 : x
  2. Step 2: Convert to fraction form
    775,485.82/1,070,088.60 = 431,265.88/x
  3. Step 3: Cross multiply
    775,485.82x = 1,070,088.60 × 431,265.88
  4. Step 4: Simplify right side
    775,485.82x = 461,492,701,756.97
  5. Step 5: Solve for x
    x = 461,492,701,756.97/775,485.82
  6. Step 6: Final answer
    x = 595,101.41

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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.