Finding the Fourth Proportional to 1,090,817.80, 1,636,226.70 and 558,161.80
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Solution
The fourth proportional to 1,090,817.80, 1,636,226.70 and 558,161.80 is: 837,242.70
Step by Step Solution
- Step 1: Write the proportion equation
1,090,817.80 : 1,636,226.70 = 558,161.80 : x - Step 2: Convert to fraction form
1,090,817.80/1,636,226.70 = 558,161.80/x - Step 3: Cross multiply
1,090,817.80x = 1,636,226.70 × 558,161.80 - Step 4: Simplify right side
1,090,817.80x = 913,279,240,080.06 - Step 5: Solve for x
x = 913,279,240,080.06/1,090,817.80 - Step 6: Final answer
x = 837,242.70
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1.5x scale
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.