Finding the Fourth Proportional to 778,857.80, 1,168,286.70 and 424,563.80
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Solution
The fourth proportional to 778,857.80, 1,168,286.70 and 424,563.80 is: 636,845.70
Step by Step Solution
- Step 1: Write the proportion equation
778,857.80 : 1,168,286.70 = 424,563.80 : x - Step 2: Convert to fraction form
778,857.80/1,168,286.70 = 424,563.80/x - Step 3: Cross multiply
778,857.80x = 1,168,286.70 × 424,563.80 - Step 4: Simplify right side
778,857.80x = 496,012,240,841.46 - Step 5: Solve for x
x = 496,012,240,841.46/778,857.80 - Step 6: Final answer
x = 636,845.70
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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.