Finding the Fourth Proportional to 778,960.60, 1,168,325.70 and 218,051.80
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Solution
The fourth proportional to 778,960.60, 1,168,325.70 and 218,051.80 is: 327,045.45
Step by Step Solution
- Step 1: Write the proportion equation
778,960.60 : 1,168,325.70 = 218,051.80 : x - Step 2: Convert to fraction form
778,960.60/1,168,325.70 = 218,051.80/x - Step 3: Cross multiply
778,960.60x = 1,168,325.70 × 218,051.80 - Step 4: Simplify right side
778,960.60x = 254,755,521,871.26 - Step 5: Solve for x
x = 254,755,521,871.26/778,960.60 - Step 6: Final answer
x = 327,045.45
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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.