Finding the Fourth Proportional to 838,613.32, 1,157,254.76 and 512,471.68
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Solution
The fourth proportional to 838,613.32, 1,157,254.76 and 512,471.68 is: 707,191.59
Step by Step Solution
- Step 1: Write the proportion equation
838,613.32 : 1,157,254.76 = 512,471.68 : x - Step 2: Convert to fraction form
838,613.32/1,157,254.76 = 512,471.68/x - Step 3: Cross multiply
838,613.32x = 1,157,254.76 × 512,471.68 - Step 4: Simplify right side
838,613.32x = 593,060,289,433.24 - Step 5: Solve for x
x = 593,060,289,433.24/838,613.32 - Step 6: Final answer
x = 707,191.59
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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.