Home / 815,337.09-1,124,984.03-493,040.43

Finding the Fourth Proportional to 815,337.09, 1,124,984.03 and 493,040.43

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Solution

The fourth proportional to 815,337.09, 1,124,984.03 and 493,040.43 is: 680,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,337.09 : 1,124,984.03 = 493,040.43 : x
  2. Step 2: Convert to fraction form
    815,337.09/1,124,984.03 = 493,040.43/x
  3. Step 3: Cross multiply
    815,337.09x = 1,124,984.03 × 493,040.43
  4. Step 4: Simplify right side
    815,337.09x = 554,662,607,429.13
  5. Step 5: Solve for x
    x = 554,662,607,429.13/815,337.09
  6. Step 6: Final answer
    x = 680,286.25

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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.