Finding the Fourth Proportional to 720,623.88, 994,559.76 and 414,693.96
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Solution
The fourth proportional to 720,623.88, 994,559.76 and 414,693.96 is: 572,334.52
Step by Step Solution
- Step 1: Write the proportion equation
720,623.88 : 994,559.76 = 414,693.96 : x - Step 2: Convert to fraction form
720,623.88/994,559.76 = 414,693.96/x - Step 3: Cross multiply
720,623.88x = 994,559.76 × 414,693.96 - Step 4: Simplify right side
720,623.88x = 412,437,925,331.05 - Step 5: Solve for x
x = 412,437,925,331.05/720,623.88 - Step 6: Final answer
x = 572,334.52
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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.