Finding the Fourth Proportional to 917,668.49, 1,266,381.84 and 509,808.47
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Solution
The fourth proportional to 917,668.49, 1,266,381.84 and 509,808.47 is: 703,535.32
Step by Step Solution
- Step 1: Write the proportion equation
917,668.49 : 1,266,381.84 = 509,808.47 : x - Step 2: Convert to fraction form
917,668.49/1,266,381.84 = 509,808.47/x - Step 3: Cross multiply
917,668.49x = 1,266,381.84 × 509,808.47 - Step 4: Simplify right side
917,668.49x = 645,612,191,452.14 - Step 5: Solve for x
x = 645,612,191,452.14/917,668.49 - Step 6: Final answer
x = 703,535.32
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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.