Finding the Fourth Proportional to 826,638.70, 1,239,958.05 and 616,686.70
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Solution
The fourth proportional to 826,638.70, 1,239,958.05 and 616,686.70 is: 925,030.05
Step by Step Solution
- Step 1: Write the proportion equation
826,638.70 : 1,239,958.05 = 616,686.70 : x - Step 2: Convert to fraction form
826,638.70/1,239,958.05 = 616,686.70/x - Step 3: Cross multiply
826,638.70x = 1,239,958.05 × 616,686.70 - Step 4: Simplify right side
826,638.70x = 764,665,637,992.94 - Step 5: Solve for x
x = 764,665,637,992.94/826,638.70 - Step 6: Final answer
x = 925,030.05
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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.