Home / 815,148.09-1,222,328.88-341,706.33

Finding the Fourth Proportional to 815,148.09, 1,222,328.88 and 341,706.33

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Solution

The fourth proportional to 815,148.09, 1,222,328.88 and 341,706.33 is: 512,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,148.09 : 1,222,328.88 = 341,706.33 : x
  2. Step 2: Convert to fraction form
    815,148.09/1,222,328.88 = 341,706.33/x
  3. Step 3: Cross multiply
    815,148.09x = 1,222,328.88 × 341,706.33
  4. Step 4: Simplify right side
    815,148.09x = 417,677,515,637.81
  5. Step 5: Solve for x
    x = 417,677,515,637.81/815,148.09
  6. Step 6: Final answer
    x = 512,394.64

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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.