Home / 628,316.24-867,039.75-352,648.48

Finding the Fourth Proportional to 628,316.24, 867,039.75 and 352,648.48

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Solution

The fourth proportional to 628,316.24, 867,039.75 and 352,648.48 is: 486,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,316.24 : 867,039.75 = 352,648.48 : x
  2. Step 2: Convert to fraction form
    628,316.24/867,039.75 = 352,648.48/x
  3. Step 3: Cross multiply
    628,316.24x = 867,039.75 × 352,648.48
  4. Step 4: Simplify right side
    628,316.24x = 305,760,249,496.27
  5. Step 5: Solve for x
    x = 305,760,249,496.27/628,316.24
  6. Step 6: Final answer
    x = 486,634.33

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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.