Home / 687,422.48-1,030,887.72-238,022.69

Finding the Fourth Proportional to 687,422.48, 1,030,887.72 and 238,022.69

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Solution

The fourth proportional to 687,422.48, 1,030,887.72 and 238,022.69 is: 356,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,422.48 : 1,030,887.72 = 238,022.69 : x
  2. Step 2: Convert to fraction form
    687,422.48/1,030,887.72 = 238,022.69/x
  3. Step 3: Cross multiply
    687,422.48x = 1,030,887.72 × 238,022.69
  4. Step 4: Simplify right side
    687,422.48x = 245,374,663,047.93
  5. Step 5: Solve for x
    x = 245,374,663,047.93/687,422.48
  6. Step 6: Final answer
    x = 356,948.85

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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.