Finding the Fourth Proportional to 1,072,972.73, 1,609,209.39 and 399,371.26
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Solution
The fourth proportional to 1,072,972.73, 1,609,209.39 and 399,371.26 is: 598,963.95
Step by Step Solution
- Step 1: Write the proportion equation
1,072,972.73 : 1,609,209.39 = 399,371.26 : x - Step 2: Convert to fraction form
1,072,972.73/1,609,209.39 = 399,371.26/x - Step 3: Cross multiply
1,072,972.73x = 1,609,209.39 × 399,371.26 - Step 4: Simplify right side
1,072,972.73x = 642,671,981,688.13 - Step 5: Solve for x
x = 642,671,981,688.13/1,072,972.73 - Step 6: Final answer
x = 598,963.95
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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.