Finding the Fourth Proportional to 578,853.95, 798,791.42 and 317,195.80
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Solution
The fourth proportional to 578,853.95, 798,791.42 and 317,195.80 is: 437,715.39
Step by Step Solution
- Step 1: Write the proportion equation
578,853.95 : 798,791.42 = 317,195.80 : x - Step 2: Convert to fraction form
578,853.95/798,791.42 = 317,195.80/x - Step 3: Cross multiply
578,853.95x = 798,791.42 × 317,195.80 - Step 4: Simplify right side
578,853.95x = 253,373,282,296.05 - Step 5: Solve for x
x = 253,373,282,296.05/578,853.95 - Step 6: Final answer
x = 437,715.39
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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.