Finding the Fourth Proportional to 1,122,881.13, 1,683,821.42 and 323,972.76
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Solution
The fourth proportional to 1,122,881.13, 1,683,821.42 and 323,972.76 is: 485,814.81
Step by Step Solution
- Step 1: Write the proportion equation
1,122,881.13 : 1,683,821.42 = 323,972.76 : x - Step 2: Convert to fraction form
1,122,881.13/1,683,821.42 = 323,972.76/x - Step 3: Cross multiply
1,122,881.13x = 1,683,821.42 × 323,972.76 - Step 4: Simplify right side
1,122,881.13x = 545,512,278,693.88 - Step 5: Solve for x
x = 545,512,278,693.88/1,122,881.13 - Step 6: Final answer
x = 485,814.81
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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.