Home / 657,076.29-985,622.27-257,905.05

Finding the Fourth Proportional to 657,076.29, 985,622.27 and 257,905.05

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Solution

The fourth proportional to 657,076.29, 985,622.27 and 257,905.05 is: 386,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,076.29 : 985,622.27 = 257,905.05 : x
  2. Step 2: Convert to fraction form
    657,076.29/985,622.27 = 257,905.05/x
  3. Step 3: Cross multiply
    657,076.29x = 985,622.27 × 257,905.05
  4. Step 4: Simplify right side
    657,076.29x = 254,196,959,535.94
  5. Step 5: Solve for x
    x = 254,196,959,535.94/657,076.29
  6. Step 6: Final answer
    x = 386,860.65

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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.