Finding the Fourth Proportional to 782,898.07, 1,080,015.42 and 679,386.99
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Solution
The fourth proportional to 782,898.07, 1,080,015.42 and 679,386.99 is: 937,220.89
Step by Step Solution
- Step 1: Write the proportion equation
782,898.07 : 1,080,015.42 = 679,386.99 : x - Step 2: Convert to fraction form
782,898.07/1,080,015.42 = 679,386.99/x - Step 3: Cross multiply
782,898.07x = 1,080,015.42 × 679,386.99 - Step 4: Simplify right side
782,898.07x = 733,748,425,347.39 - Step 5: Solve for x
x = 733,748,425,347.39/782,898.07 - Step 6: Final answer
x = 937,220.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.