Finding the Fourth Proportional to 1,427,647.99, 1,970,595.38 and 918,350.36
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Solution
The fourth proportional to 1,427,647.99, 1,970,595.38 and 918,350.36 is: 1,267,607.28
Step by Step Solution
- Step 1: Write the proportion equation
1,427,647.99 : 1,970,595.38 = 918,350.36 : x - Step 2: Convert to fraction form
1,427,647.99/1,970,595.38 = 918,350.36/x - Step 3: Cross multiply
1,427,647.99x = 1,970,595.38 × 918,350.36 - Step 4: Simplify right side
1,427,647.99x = 1,809,696,983,859.70 - Step 5: Solve for x
x = 1,809,696,983,859.70/1,427,647.99 - Step 6: Final answer
x = 1,267,607.28
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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.