Finding the Fourth Proportional to 926,631.68, 1,278,643.84 and 518,755.84
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Solution
The fourth proportional to 926,631.68, 1,278,643.84 and 518,755.84 is: 715,822.67
Step by Step Solution
- Step 1: Write the proportion equation
926,631.68 : 1,278,643.84 = 518,755.84 : x - Step 2: Convert to fraction form
926,631.68/1,278,643.84 = 518,755.84/x - Step 3: Cross multiply
926,631.68x = 1,278,643.84 × 518,755.84 - Step 4: Simplify right side
926,631.68x = 663,303,959,280.03 - Step 5: Solve for x
x = 663,303,959,280.03/926,631.68 - Step 6: Final answer
x = 715,822.67
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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.