Finding the Fourth Proportional to 1,369,607.60, 1,890,663.88 and 818,517.84
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Solution
The fourth proportional to 1,369,607.60, 1,890,663.88 and 818,517.84 is: 1,129,916.42
Step by Step Solution
- Step 1: Write the proportion equation
1,369,607.60 : 1,890,663.88 = 818,517.84 : x - Step 2: Convert to fraction form
1,369,607.60/1,890,663.88 = 818,517.84/x - Step 3: Cross multiply
1,369,607.60x = 1,890,663.88 × 818,517.84 - Step 4: Simplify right side
1,369,607.60x = 1,547,542,115,223.62 - Step 5: Solve for x
x = 1,547,542,115,223.62/1,369,607.60 - Step 6: Final answer
x = 1,129,916.42
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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.