Home / 657,749.25-907,695.18-355,943.25

Finding the Fourth Proportional to 657,749.25, 907,695.18 and 355,943.25

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Solution

The fourth proportional to 657,749.25, 907,695.18 and 355,943.25 is: 491,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,749.25 : 907,695.18 = 355,943.25 : x
  2. Step 2: Convert to fraction form
    657,749.25/907,695.18 = 355,943.25/x
  3. Step 3: Cross multiply
    657,749.25x = 907,695.18 × 355,943.25
  4. Step 4: Simplify right side
    657,749.25x = 323,087,972,378.54
  5. Step 5: Solve for x
    x = 323,087,972,378.54/657,749.25
  6. Step 6: Final answer
    x = 491,202.34

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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.