Finding the Fourth Proportional to 1,642,905.15, 2,465,239.97 and 684,022.71
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Solution
The fourth proportional to 1,642,905.15, 2,465,239.97 and 684,022.71 is: 1,026,401.39
Step by Step Solution
- Step 1: Write the proportion equation
1,642,905.15 : 2,465,239.97 = 684,022.71 : x - Step 2: Convert to fraction form
1,642,905.15/2,465,239.97 = 684,022.71/x - Step 3: Cross multiply
1,642,905.15x = 2,465,239.97 × 684,022.71 - Step 4: Simplify right side
1,642,905.15x = 1,686,280,121,659.61 - Step 5: Solve for x
x = 1,686,280,121,659.61/1,642,905.15 - Step 6: Final answer
x = 1,026,401.39
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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.