Finding the Fourth Proportional to 1,090,719.12, 1,636,160.68 and 291,982.96
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Solution
The fourth proportional to 1,090,719.12, 1,636,160.68 and 291,982.96 is: 437,996.39
Step by Step Solution
- Step 1: Write the proportion equation
1,090,719.12 : 1,636,160.68 = 291,982.96 : x - Step 2: Convert to fraction form
1,090,719.12/1,636,160.68 = 291,982.96/x - Step 3: Cross multiply
1,090,719.12x = 1,636,160.68 × 291,982.96 - Step 4: Simplify right side
1,090,719.12x = 477,731,038,382.01 - Step 5: Solve for x
x = 477,731,038,382.01/1,090,719.12 - Step 6: Final answer
x = 437,996.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.