Finding the Fourth Proportional to 754,818.19, 1,132,393.61 and 328,420.96
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Solution
The fourth proportional to 754,818.19, 1,132,393.61 and 328,420.96 is: 492,703.81
Step by Step Solution
- Step 1: Write the proportion equation
754,818.19 : 1,132,393.61 = 328,420.96 : x - Step 2: Convert to fraction form
754,818.19/1,132,393.61 = 328,420.96/x - Step 3: Cross multiply
754,818.19x = 1,132,393.61 × 328,420.96 - Step 4: Simplify right side
754,818.19x = 371,901,796,494.07 - Step 5: Solve for x
x = 371,901,796,494.07/754,818.19 - Step 6: Final answer
x = 492,703.81
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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.