Finding the Fourth Proportional to 926,397.36, 1,278,426.42 and 518,497.56
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Solution
The fourth proportional to 926,397.36, 1,278,426.42 and 518,497.56 is: 715,525.55
Step by Step Solution
- Step 1: Write the proportion equation
926,397.36 : 1,278,426.42 = 518,497.56 : x - Step 2: Convert to fraction form
926,397.36/1,278,426.42 = 518,497.56/x - Step 3: Cross multiply
926,397.36x = 1,278,426.42 × 518,497.56 - Step 4: Simplify right side
926,397.36x = 662,860,979,409.54 - Step 5: Solve for x
x = 662,860,979,409.54/926,397.36 - Step 6: Final answer
x = 715,525.55
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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.