Finding the Fourth Proportional to 5,278,207.04, 7,917,318.24 and 1,911,625.28
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Solution
The fourth proportional to 5,278,207.04, 7,917,318.24 and 1,911,625.28 is: 2,867,440.70
Step by Step Solution
- Step 1: Write the proportion equation
5,278,207.04 : 7,917,318.24 = 1,911,625.28 : x - Step 2: Convert to fraction form
5,278,207.04/7,917,318.24 = 1,911,625.28/x - Step 3: Cross multiply
5,278,207.04x = 7,917,318.24 × 1,911,625.28 - Step 4: Simplify right side
5,278,207.04x = 15,134,945,697,389.11 - Step 5: Solve for x
x = 15,134,945,697,389.11/5,278,207.04 - Step 6: Final answer
x = 2,867,440.70
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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.