Finding the Fourth Proportional to 1,092,135.80, 1,638,203.70 and 559,479.80
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Solution
The fourth proportional to 1,092,135.80, 1,638,203.70 and 559,479.80 is: 839,219.70
Step by Step Solution
- Step 1: Write the proportion equation
1,092,135.80 : 1,638,203.70 = 559,479.80 : x - Step 2: Convert to fraction form
1,092,135.80/1,638,203.70 = 559,479.80/x - Step 3: Cross multiply
1,092,135.80x = 1,638,203.70 × 559,479.80 - Step 4: Simplify right side
1,092,135.80x = 916,541,878,435.26 - Step 5: Solve for x
x = 916,541,878,435.26/1,092,135.80 - Step 6: Final answer
x = 839,219.70
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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.