Home / 861,347.37-1,291,069.61-355,629.54

Finding the Fourth Proportional to 861,347.37, 1,291,069.61 and 355,629.54

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Solution

The fourth proportional to 861,347.37, 1,291,069.61 and 355,629.54 is: 533,051.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,347.37 : 1,291,069.61 = 355,629.54 : x
  2. Step 2: Convert to fraction form
    861,347.37/1,291,069.61 = 355,629.54/x
  3. Step 3: Cross multiply
    861,347.37x = 1,291,069.61 × 355,629.54
  4. Step 4: Simplify right side
    861,347.37x = 459,142,491,512.28
  5. Step 5: Solve for x
    x = 459,142,491,512.28/861,347.37
  6. Step 6: Final answer
    x = 533,051.48

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1.5x scale

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.