Home / 657,129.20-985,270.03-257,810.33

Finding the Fourth Proportional to 657,129.20, 985,270.03 and 257,810.33

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Solution

The fourth proportional to 657,129.20, 985,270.03 and 257,810.33 is: 386,549.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,129.20 : 985,270.03 = 257,810.33 : x
  2. Step 2: Convert to fraction form
    657,129.20/985,270.03 = 257,810.33/x
  3. Step 3: Cross multiply
    657,129.20x = 985,270.03 × 257,810.33
  4. Step 4: Simplify right side
    657,129.20x = 254,012,793,392.06
  5. Step 5: Solve for x
    x = 254,012,793,392.06/657,129.20
  6. Step 6: Final answer
    x = 386,549.24

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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.