Finding the Fourth Proportional to 748,587.42, 1,122,547.61 and 215,981.84
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Solution
The fourth proportional to 748,587.42, 1,122,547.61 and 215,981.84 is: 323,876.54
Step by Step Solution
- Step 1: Write the proportion equation
748,587.42 : 1,122,547.61 = 215,981.84 : x - Step 2: Convert to fraction form
748,587.42/1,122,547.61 = 215,981.84/x - Step 3: Cross multiply
748,587.42x = 1,122,547.61 × 215,981.84 - Step 4: Simplify right side
748,587.42x = 242,449,901,641.73 - Step 5: Solve for x
x = 242,449,901,641.73/748,587.42 - Step 6: Final answer
x = 323,876.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.