Finding the Fourth Proportional to 1,278,386.53, 1,915,107.03 and 1,070,756.06
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Solution
The fourth proportional to 1,278,386.53, 1,915,107.03 and 1,070,756.06 is: 1,604,062.94
Step by Step Solution
- Step 1: Write the proportion equation
1,278,386.53 : 1,915,107.03 = 1,070,756.06 : x - Step 2: Convert to fraction form
1,278,386.53/1,915,107.03 = 1,070,756.06/x - Step 3: Cross multiply
1,278,386.53x = 1,915,107.03 × 1,070,756.06 - Step 4: Simplify right side
1,278,386.53x = 2,050,612,448,345.57 - Step 5: Solve for x
x = 2,050,612,448,345.57/1,278,386.53 - Step 6: Final answer
x = 1,604,062.94
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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.