Home / 657,042.48-906,719.94-355,236.48

Finding the Fourth Proportional to 657,042.48, 906,719.94 and 355,236.48

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Solution

The fourth proportional to 657,042.48, 906,719.94 and 355,236.48 is: 490,227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,042.48 : 906,719.94 = 355,236.48 : x
  2. Step 2: Convert to fraction form
    657,042.48/906,719.94 = 355,236.48/x
  3. Step 3: Cross multiply
    657,042.48x = 906,719.94 × 355,236.48
  4. Step 4: Simplify right side
    657,042.48x = 322,099,999,831.41
  5. Step 5: Solve for x
    x = 322,099,999,831.41/657,042.48
  6. Step 6: Final answer
    x = 490,227.05

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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.