Finding the Fourth Proportional to 690,389.84, 1,034,185.08 and 357,266
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Solution
The fourth proportional to 690,389.84, 1,034,185.08 and 357,266 is: 535,174.69
Step by Step Solution
- Step 1: Write the proportion equation
690,389.84 : 1,034,185.08 = 357,266 : x - Step 2: Convert to fraction form
690,389.84/1,034,185.08 = 357,266/x - Step 3: Cross multiply
690,389.84x = 1,034,185.08 × 357,266 - Step 4: Simplify right side
690,389.84x = 369,479,166,791.28 - Step 5: Solve for x
x = 369,479,166,791.28/690,389.84 - Step 6: Final answer
x = 535,174.69
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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.