Home / 657,742.25-907,684.31-355,936.25

Finding the Fourth Proportional to 657,742.25, 907,684.31 and 355,936.25

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Solution

The fourth proportional to 657,742.25, 907,684.31 and 355,936.25 is: 491,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,742.25 : 907,684.31 = 355,936.25 : x
  2. Step 2: Convert to fraction form
    657,742.25/907,684.31 = 355,936.25/x
  3. Step 3: Cross multiply
    657,742.25x = 907,684.31 × 355,936.25
  4. Step 4: Simplify right side
    657,742.25x = 323,077,749,485.24
  5. Step 5: Solve for x
    x = 323,077,749,485.24/657,742.25
  6. Step 6: Final answer
    x = 491,192.03

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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.