Home / 775,513.43-1,070,193.18-431,341.95

Finding the Fourth Proportional to 775,513.43, 1,070,193.18 and 431,341.95

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Solution

The fourth proportional to 775,513.43, 1,070,193.18 and 431,341.95 is: 595,243.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,513.43 : 1,070,193.18 = 431,341.95 : x
  2. Step 2: Convert to fraction form
    775,513.43/1,070,193.18 = 431,341.95/x
  3. Step 3: Cross multiply
    775,513.43x = 1,070,193.18 × 431,341.95
  4. Step 4: Simplify right side
    775,513.43x = 461,619,213,137.90
  5. Step 5: Solve for x
    x = 461,619,213,137.90/775,513.43
  6. Step 6: Final answer
    x = 595,243.36

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Double scale
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Similar ratio
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1.5x scale

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.