Finding the Fourth Proportional to 926,523.12, 1,278,623.55 and 518,614.81
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Solution
The fourth proportional to 926,523.12, 1,278,623.55 and 518,614.81 is: 715,700.55
Step by Step Solution
- Step 1: Write the proportion equation
926,523.12 : 1,278,623.55 = 518,614.81 : x - Step 2: Convert to fraction form
926,523.12/1,278,623.55 = 518,614.81/x - Step 3: Cross multiply
926,523.12x = 1,278,623.55 × 518,614.81 - Step 4: Simplify right side
926,523.12x = 663,113,109,444.78 - Step 5: Solve for x
x = 663,113,109,444.78/926,523.12 - Step 6: Final answer
x = 715,700.55
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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.