Finding the Fourth Proportional to 1,087,398.18, 1,631,097.27 and 339,508.26
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Solution
The fourth proportional to 1,087,398.18, 1,631,097.27 and 339,508.26 is: 509,262.39
Step by Step Solution
- Step 1: Write the proportion equation
1,087,398.18 : 1,631,097.27 = 339,508.26 : x - Step 2: Convert to fraction form
1,087,398.18/1,631,097.27 = 339,508.26/x - Step 3: Cross multiply
1,087,398.18x = 1,631,097.27 × 339,508.26 - Step 4: Simplify right side
1,087,398.18x = 553,770,996,028.45 - Step 5: Solve for x
x = 553,770,996,028.45/1,087,398.18 - Step 6: Final answer
x = 509,262.39
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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.