Finding the Fourth Proportional to 709,771.40, 979,499.36 and 387,495.08
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Solution
The fourth proportional to 709,771.40, 979,499.36 and 387,495.08 is: 534,751.31
Step by Step Solution
- Step 1: Write the proportion equation
709,771.40 : 979,499.36 = 387,495.08 : x - Step 2: Convert to fraction form
709,771.40/979,499.36 = 387,495.08/x - Step 3: Cross multiply
709,771.40x = 979,499.36 × 387,495.08 - Step 4: Simplify right side
709,771.40x = 379,551,182,863.15 - Step 5: Solve for x
x = 379,551,182,863.15/709,771.40 - Step 6: Final answer
x = 534,751.31
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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.