Finding the Fourth Proportional to 1,556,821.08, 2,148,412.12 and 841,429.08
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Solution
The fourth proportional to 1,556,821.08, 2,148,412.12 and 841,429.08 is: 1,161,171.61
Step by Step Solution
- Step 1: Write the proportion equation
1,556,821.08 : 2,148,412.12 = 841,429.08 : x - Step 2: Convert to fraction form
1,556,821.08/2,148,412.12 = 841,429.08/x - Step 3: Cross multiply
1,556,821.08x = 2,148,412.12 × 841,429.08 - Step 4: Simplify right side
1,556,821.08x = 1,807,736,433,592.45 - Step 5: Solve for x
x = 1,807,736,433,592.45/1,556,821.08 - Step 6: Final answer
x = 1,161,171.61
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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.