Finding the Fourth Proportional to 932,108.76, 1,286,290.87 and 518,636.36
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Solution
The fourth proportional to 932,108.76, 1,286,290.87 and 518,636.36 is: 715,707.49
Step by Step Solution
- Step 1: Write the proportion equation
932,108.76 : 1,286,290.87 = 518,636.36 : x - Step 2: Convert to fraction form
932,108.76/1,286,290.87 = 518,636.36/x - Step 3: Cross multiply
932,108.76x = 1,286,290.87 × 518,636.36 - Step 4: Simplify right side
932,108.76x = 667,117,216,637.17 - Step 5: Solve for x
x = 667,117,216,637.17/932,108.76 - Step 6: Final answer
x = 715,707.49
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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.