Finding the Fourth Proportional to 1,313,123.67, 1,812,110.13 and 709,511.67
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Solution
The fourth proportional to 1,313,123.67, 1,812,110.13 and 709,511.67 is: 979,125.82
Step by Step Solution
- Step 1: Write the proportion equation
1,313,123.67 : 1,812,110.13 = 709,511.67 : x - Step 2: Convert to fraction form
1,313,123.67/1,812,110.13 = 709,511.67/x - Step 3: Cross multiply
1,313,123.67x = 1,812,110.13 × 709,511.67 - Step 4: Simplify right side
1,313,123.67x = 1,285,713,284,560.22 - Step 5: Solve for x
x = 1,285,713,284,560.22/1,313,123.67 - Step 6: Final answer
x = 979,125.82
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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.