Finding the Fourth Proportional to 1,515,646.83, 2,090,867.52 and 1,025,787.99
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Solution
The fourth proportional to 1,515,646.83, 2,090,867.52 and 1,025,787.99 is: 1,415,096.68
Step by Step Solution
- Step 1: Write the proportion equation
1,515,646.83 : 2,090,867.52 = 1,025,787.99 : x - Step 2: Convert to fraction form
1,515,646.83/2,090,867.52 = 1,025,787.99/x - Step 3: Cross multiply
1,515,646.83x = 2,090,867.52 × 1,025,787.99 - Step 4: Simplify right side
1,515,646.83x = 2,144,786,790,697.08 - Step 5: Solve for x
x = 2,144,786,790,697.08/1,515,646.83 - Step 6: Final answer
x = 1,415,096.68
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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.