Finding the Fourth Proportional to 719,612.75, 993,153.08 and 417,806.75
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Solution
The fourth proportional to 719,612.75, 993,153.08 and 417,806.75 is: 576,624.11
Step by Step Solution
- Step 1: Write the proportion equation
719,612.75 : 993,153.08 = 417,806.75 : x - Step 2: Convert to fraction form
719,612.75/993,153.08 = 417,806.75/x - Step 3: Cross multiply
719,612.75x = 993,153.08 × 417,806.75 - Step 4: Simplify right side
719,612.75x = 414,946,058,518.26 - Step 5: Solve for x
x = 414,946,058,518.26/719,612.75 - Step 6: Final answer
x = 576,624.11
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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.