Finding the Fourth Proportional to 709,132.34, 1,063,895.36 and 393,810.68
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Solution
The fourth proportional to 709,132.34, 1,063,895.36 and 393,810.68 is: 590,825.34
Step by Step Solution
- Step 1: Write the proportion equation
709,132.34 : 1,063,895.36 = 393,810.68 : x - Step 2: Convert to fraction form
709,132.34/1,063,895.36 = 393,810.68/x - Step 3: Cross multiply
709,132.34x = 1,063,895.36 × 393,810.68 - Step 4: Simplify right side
709,132.34x = 418,973,355,861.13 - Step 5: Solve for x
x = 418,973,355,861.13/709,132.34 - Step 6: Final answer
x = 590,825.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.