Finding the Fourth Proportional to 745,144.20, 1,117,089.36 and 324,102.96
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Solution
The fourth proportional to 745,144.20, 1,117,089.36 and 324,102.96 is: 485,881.75
Step by Step Solution
- Step 1: Write the proportion equation
745,144.20 : 1,117,089.36 = 324,102.96 : x - Step 2: Convert to fraction form
745,144.20/1,117,089.36 = 324,102.96/x - Step 3: Cross multiply
745,144.20x = 1,117,089.36 × 324,102.96 - Step 4: Simplify right side
745,144.20x = 362,051,968,160.51 - Step 5: Solve for x
x = 362,051,968,160.51/745,144.20 - Step 6: Final answer
x = 485,881.75
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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.