Finding the Fourth Proportional to 838,566.18, 1,157,242.14 and 456,613.92
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Solution
The fourth proportional to 838,566.18, 1,157,242.14 and 456,613.92 is: 630,138.54
Step by Step Solution
- Step 1: Write the proportion equation
838,566.18 : 1,157,242.14 = 456,613.92 : x - Step 2: Convert to fraction form
838,566.18/1,157,242.14 = 456,613.92/x - Step 3: Cross multiply
838,566.18x = 1,157,242.14 × 456,613.92 - Step 4: Simplify right side
838,566.18x = 528,412,869,934.59 - Step 5: Solve for x
x = 528,412,869,934.59/838,566.18 - Step 6: Final answer
x = 630,138.54
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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.