Finding the Fourth Proportional to 1,688,244.48, 2,329,141.32 and 1,107,787.68
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Solution
The fourth proportional to 1,688,244.48, 2,329,141.32 and 1,107,787.68 is: 1,528,329.63
Step by Step Solution
- Step 1: Write the proportion equation
1,688,244.48 : 2,329,141.32 = 1,107,787.68 : x - Step 2: Convert to fraction form
1,688,244.48/2,329,141.32 = 1,107,787.68/x - Step 3: Cross multiply
1,688,244.48x = 2,329,141.32 × 1,107,787.68 - Step 4: Simplify right side
1,688,244.48x = 2,580,194,059,274.94 - Step 5: Solve for x
x = 2,580,194,059,274.94/1,688,244.48 - Step 6: Final answer
x = 1,528,329.63
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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.