Finding the Fourth Proportional to 1,369,555.57, 1,890,592.11 and 818,465.80
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Solution
The fourth proportional to 1,369,555.57, 1,890,592.11 and 818,465.80 is: 1,129,844.61
Step by Step Solution
- Step 1: Write the proportion equation
1,369,555.57 : 1,890,592.11 = 818,465.80 : x - Step 2: Convert to fraction form
1,369,555.57/1,890,592.11 = 818,465.80/x - Step 3: Cross multiply
1,369,555.57x = 1,890,592.11 × 818,465.80 - Step 4: Simplify right side
1,369,555.57x = 1,547,384,983,784.84 - Step 5: Solve for x
x = 1,547,384,983,784.84/1,369,555.57 - Step 6: Final answer
x = 1,129,844.61
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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.