Finding the Fourth Proportional to 690,557.84, 952,901.70 and 384,623.96
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Solution
The fourth proportional to 690,557.84, 952,901.70 and 384,623.96 is: 530,743.12
Step by Step Solution
- Step 1: Write the proportion equation
690,557.84 : 952,901.70 = 384,623.96 : x - Step 2: Convert to fraction form
690,557.84/952,901.70 = 384,623.96/x - Step 3: Cross multiply
690,557.84x = 952,901.70 × 384,623.96 - Step 4: Simplify right side
690,557.84x = 366,508,825,344.73 - Step 5: Solve for x
x = 366,508,825,344.73/690,557.84 - Step 6: Final answer
x = 530,743.12
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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.