Finding the Fourth Proportional to 891,125.12, 1,229,817.71 and 509,143.70
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Solution
The fourth proportional to 891,125.12, 1,229,817.71 and 509,143.70 is: 702,655.47
Step by Step Solution
- Step 1: Write the proportion equation
891,125.12 : 1,229,817.71 = 509,143.70 : x - Step 2: Convert to fraction form
891,125.12/1,229,817.71 = 509,143.70/x - Step 3: Cross multiply
891,125.12x = 1,229,817.71 × 509,143.70 - Step 4: Simplify right side
891,125.12x = 626,153,934,318.70 - Step 5: Solve for x
x = 626,153,934,318.70/891,125.12 - Step 6: Final answer
x = 702,655.47
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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.