Finding the Fourth Proportional to 716,237.62, 988,408.42 and 393,972.23
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Solution
The fourth proportional to 716,237.62, 988,408.42 and 393,972.23 is: 543,681.96
Step by Step Solution
- Step 1: Write the proportion equation
716,237.62 : 988,408.42 = 393,972.23 : x - Step 2: Convert to fraction form
716,237.62/988,408.42 = 393,972.23/x - Step 3: Cross multiply
716,237.62x = 988,408.42 × 393,972.23 - Step 4: Simplify right side
716,237.62x = 389,405,470,864.27 - Step 5: Solve for x
x = 389,405,470,864.27/716,237.62 - Step 6: Final answer
x = 543,681.96
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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.