Finding the Fourth Proportional to 1,078,795.99, 1,489,298.16 and 788,081.19
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Solution
The fourth proportional to 1,078,795.99, 1,489,298.16 and 788,081.19 is: 1,087,960.91
Step by Step Solution
- Step 1: Write the proportion equation
1,078,795.99 : 1,489,298.16 = 788,081.19 : x - Step 2: Convert to fraction form
1,078,795.99/1,489,298.16 = 788,081.19/x - Step 3: Cross multiply
1,078,795.99x = 1,489,298.16 × 788,081.19 - Step 4: Simplify right side
1,078,795.99x = 1,173,687,866,197.61 - Step 5: Solve for x
x = 1,173,687,866,197.61/1,078,795.99 - Step 6: Final answer
x = 1,087,960.91
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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.