Home / 497,933.89-687,145.53-283,074.01

Finding the Fourth Proportional to 497,933.89, 687,145.53 and 283,074.01

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Solution

The fourth proportional to 497,933.89, 687,145.53 and 283,074.01 is: 390,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,933.89 : 687,145.53 = 283,074.01 : x
  2. Step 2: Convert to fraction form
    497,933.89/687,145.53 = 283,074.01/x
  3. Step 3: Cross multiply
    497,933.89x = 687,145.53 × 283,074.01
  4. Step 4: Simplify right side
    497,933.89x = 194,513,040,630.68
  5. Step 5: Solve for x
    x = 194,513,040,630.68/497,933.89
  6. Step 6: Final answer
    x = 390,640.29

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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.