Finding the Fourth Proportional to 908,645.40, 1,360,343.70 and 554,351.40
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Solution
The fourth proportional to 908,645.40, 1,360,343.70 and 554,351.40 is: 829,925.99
Step by Step Solution
- Step 1: Write the proportion equation
908,645.40 : 1,360,343.70 = 554,351.40 : x - Step 2: Convert to fraction form
908,645.40/1,360,343.70 = 554,351.40/x - Step 3: Cross multiply
908,645.40x = 1,360,343.70 × 554,351.40 - Step 4: Simplify right side
908,645.40x = 754,108,434,576.18 - Step 5: Solve for x
x = 754,108,434,576.18/908,645.40 - Step 6: Final answer
x = 829,925.99
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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.