Finding the Fourth Proportional to 689,932.80, 952,105.68 and 388,126.80
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Solution
The fourth proportional to 689,932.80, 952,105.68 and 388,126.80 is: 535,614.09
Step by Step Solution
- Step 1: Write the proportion equation
689,932.80 : 952,105.68 = 388,126.80 : x - Step 2: Convert to fraction form
689,932.80/952,105.68 = 388,126.80/x - Step 3: Cross multiply
689,932.80x = 952,105.68 × 388,126.80 - Step 4: Simplify right side
689,932.80x = 369,537,730,840.22 - Step 5: Solve for x
x = 369,537,730,840.22/689,932.80 - Step 6: Final answer
x = 535,614.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.