Finding the Fourth Proportional to 719,681.96, 993,161.16 and 397,392.68
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Solution
The fourth proportional to 719,681.96, 993,161.16 and 397,392.68 is: 548,401.93
Step by Step Solution
- Step 1: Write the proportion equation
719,681.96 : 993,161.16 = 397,392.68 : x - Step 2: Convert to fraction form
719,681.96/993,161.16 = 397,392.68/x - Step 3: Cross multiply
719,681.96x = 993,161.16 × 397,392.68 - Step 4: Simplify right side
719,681.96x = 394,674,975,044.31 - Step 5: Solve for x
x = 394,674,975,044.31/719,681.96 - Step 6: Final answer
x = 548,401.93
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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.