Finding the Fourth Proportional to 653,251.47, 978,166.47 and 427,902.99
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Solution
The fourth proportional to 653,251.47, 978,166.47 and 427,902.99 is: 640,733.89
Step by Step Solution
- Step 1: Write the proportion equation
653,251.47 : 978,166.47 = 427,902.99 : x - Step 2: Convert to fraction form
653,251.47/978,166.47 = 427,902.99/x - Step 3: Cross multiply
653,251.47x = 978,166.47 × 427,902.99 - Step 4: Simplify right side
653,251.47x = 418,560,357,230.75 - Step 5: Solve for x
x = 418,560,357,230.75/653,251.47 - Step 6: Final answer
x = 640,733.89
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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.