Finding the Fourth Proportional to 1,989,125.40, 2,744,897.58 and 1,129,572.12
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Solution
The fourth proportional to 1,989,125.40, 2,744,897.58 and 1,129,572.12 is: 1,558,755.31
Step by Step Solution
- Step 1: Write the proportion equation
1,989,125.40 : 2,744,897.58 = 1,129,572.12 : x - Step 2: Convert to fraction form
1,989,125.40/2,744,897.58 = 1,129,572.12/x - Step 3: Cross multiply
1,989,125.40x = 2,744,897.58 × 1,129,572.12 - Step 4: Simplify right side
1,989,125.40x = 3,100,559,778,623.47 - Step 5: Solve for x
x = 3,100,559,778,623.47/1,989,125.40 - Step 6: Final answer
x = 1,558,755.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.