Home / 657,902.42-986,058.41-320,437.38

Finding the Fourth Proportional to 657,902.42, 986,058.41 and 320,437.38

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Solution

The fourth proportional to 657,902.42, 986,058.41 and 320,437.38 is: 480,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,902.42 : 986,058.41 = 320,437.38 : x
  2. Step 2: Convert to fraction form
    657,902.42/986,058.41 = 320,437.38/x
  3. Step 3: Cross multiply
    657,902.42x = 986,058.41 × 320,437.38
  4. Step 4: Simplify right side
    657,902.42x = 315,969,971,825.18
  5. Step 5: Solve for x
    x = 315,969,971,825.18/657,902.42
  6. Step 6: Final answer
    x = 480,268.75

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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.