Finding the Fourth Proportional to 770,418.56, 1,063,180.44 and 430,865.12
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Solution
The fourth proportional to 770,418.56, 1,063,180.44 and 430,865.12 is: 594,595.45
Step by Step Solution
- Step 1: Write the proportion equation
770,418.56 : 1,063,180.44 = 430,865.12 : x - Step 2: Convert to fraction form
770,418.56/1,063,180.44 = 430,865.12/x - Step 3: Cross multiply
770,418.56x = 1,063,180.44 × 430,865.12 - Step 4: Simplify right side
770,418.56x = 458,087,367,862.25 - Step 5: Solve for x
x = 458,087,367,862.25/770,418.56 - Step 6: Final answer
x = 594,595.45
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1.5x scale
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.