Home / 687,231.07-1,030,432.41-308,083.16

Finding the Fourth Proportional to 687,231.07, 1,030,432.41 and 308,083.16

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Solution

The fourth proportional to 687,231.07, 1,030,432.41 and 308,083.16 is: 461,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,231.07 : 1,030,432.41 = 308,083.16 : x
  2. Step 2: Convert to fraction form
    687,231.07/1,030,432.41 = 308,083.16/x
  3. Step 3: Cross multiply
    687,231.07x = 1,030,432.41 × 308,083.16
  4. Step 4: Simplify right side
    687,231.07x = 317,458,875,615.30
  5. Step 5: Solve for x
    x = 317,458,875,615.30/687,231.07
  6. Step 6: Final answer
    x = 461,939.06

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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.