Finding the Fourth Proportional to 1,278,370.14, 1,762,720.32 and 1,045,068.92
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Solution
The fourth proportional to 1,278,370.14, 1,762,720.32 and 1,045,068.92 is: 1,441,025.70
Step by Step Solution
- Step 1: Write the proportion equation
1,278,370.14 : 1,762,720.32 = 1,045,068.92 : x - Step 2: Convert to fraction form
1,278,370.14/1,762,720.32 = 1,045,068.92/x - Step 3: Cross multiply
1,278,370.14x = 1,762,720.32 × 1,045,068.92 - Step 4: Simplify right side
1,278,370.14x = 1,842,164,221,084.45 - Step 5: Solve for x
x = 1,842,164,221,084.45/1,278,370.14 - Step 6: Final answer
x = 1,441,025.70
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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.