Finding the Fourth Proportional to 1,391,737.68, 1,919,275.56 and 908,148.24
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Solution
The fourth proportional to 1,391,737.68, 1,919,275.56 and 908,148.24 is: 1,252,381.64
Step by Step Solution
- Step 1: Write the proportion equation
1,391,737.68 : 1,919,275.56 = 908,148.24 : x - Step 2: Convert to fraction form
1,391,737.68/1,919,275.56 = 908,148.24/x - Step 3: Cross multiply
1,391,737.68x = 1,919,275.56 × 908,148.24 - Step 4: Simplify right side
1,391,737.68x = 1,742,986,721,889.01 - Step 5: Solve for x
x = 1,742,986,721,889.01/1,391,737.68 - Step 6: Final answer
x = 1,252,381.64
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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.