Finding the Fourth Proportional to 1,624,415.79, 2,236,686.75 and 1,442,812.17
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Solution
The fourth proportional to 1,624,415.79, 2,236,686.75 and 1,442,812.17 is: 1,986,633.52
Step by Step Solution
- Step 1: Write the proportion equation
1,624,415.79 : 2,236,686.75 = 1,442,812.17 : x - Step 2: Convert to fraction form
1,624,415.79/2,236,686.75 = 1,442,812.17/x - Step 3: Cross multiply
1,624,415.79x = 2,236,686.75 × 1,442,812.17 - Step 4: Simplify right side
1,624,415.79x = 3,227,118,863,377.75 - Step 5: Solve for x
x = 3,227,118,863,377.75/1,624,415.79 - Step 6: Final answer
x = 1,986,633.52
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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.