Finding the Fourth Proportional to 926,387.16, 1,278,122.97 and 518,424.18
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Solution
The fourth proportional to 926,387.16, 1,278,122.97 and 518,424.18 is: 715,262.35
Step by Step Solution
- Step 1: Write the proportion equation
926,387.16 : 1,278,122.97 = 518,424.18 : x - Step 2: Convert to fraction form
926,387.16/1,278,122.97 = 518,424.18/x - Step 3: Cross multiply
926,387.16x = 1,278,122.97 × 518,424.18 - Step 4: Simplify right side
926,387.16x = 662,609,852,661.42 - Step 5: Solve for x
x = 662,609,852,661.42/926,387.16 - Step 6: Final answer
x = 715,262.35
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1.5x scale
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.