Finding the Fourth Proportional to 1,129,191.84, 1,558,287.18 and 670,398.66
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Solution
The fourth proportional to 1,129,191.84, 1,558,287.18 and 670,398.66 is: 925,151.60
Step by Step Solution
- Step 1: Write the proportion equation
1,129,191.84 : 1,558,287.18 = 670,398.66 : x - Step 2: Convert to fraction form
1,129,191.84/1,558,287.18 = 670,398.66/x - Step 3: Cross multiply
1,129,191.84x = 1,558,287.18 × 670,398.66 - Step 4: Simplify right side
1,129,191.84x = 1,044,673,637,367.18 - Step 5: Solve for x
x = 1,044,673,637,367.18/1,129,191.84 - Step 6: Final answer
x = 925,151.60
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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.