Finding the Fourth Proportional to 838,546.12, 1,157,178.66 and 456,565.96
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Solution
The fourth proportional to 838,546.12, 1,157,178.66 and 456,565.96 is: 630,052.87
Step by Step Solution
- Step 1: Write the proportion equation
838,546.12 : 1,157,178.66 = 456,565.96 : x - Step 2: Convert to fraction form
838,546.12/1,157,178.66 = 456,565.96/x - Step 3: Cross multiply
838,546.12x = 1,157,178.66 × 456,565.96 - Step 4: Simplify right side
838,546.12x = 528,328,385,794.41 - Step 5: Solve for x
x = 528,328,385,794.41/838,546.12 - Step 6: Final answer
x = 630,052.87
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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.