Finding the Fourth Proportional to 869,252.80, 1,218,612.80 and 869,252.80
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Solution
The fourth proportional to 869,252.80, 1,218,612.80 and 869,252.80 is: 1,218,612.80
Step by Step Solution
- Step 1: Write the proportion equation
869,252.80 : 1,218,612.80 = 869,252.80 : x - Step 2: Convert to fraction form
869,252.80/1,218,612.80 = 869,252.80/x - Step 3: Cross multiply
869,252.80x = 1,218,612.80 × 869,252.80 - Step 4: Simplify right side
869,252.80x = 1,059,282,588,515.84 - Step 5: Solve for x
x = 1,059,282,588,515.84/869,252.80 - Step 6: Final answer
x = 1,218,612.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.