Finding the Fourth Proportional to 2,020,009.77, 2,787,680.70 and 1,102,289.28
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Solution
The fourth proportional to 2,020,009.77, 2,787,680.70 and 1,102,289.28 is: 1,521,195.88
Step by Step Solution
- Step 1: Write the proportion equation
2,020,009.77 : 2,787,680.70 = 1,102,289.28 : x - Step 2: Convert to fraction form
2,020,009.77/2,787,680.70 = 1,102,289.28/x - Step 3: Cross multiply
2,020,009.77x = 2,787,680.70 × 1,102,289.28 - Step 4: Simplify right side
2,020,009.77x = 3,072,830,541,219.09 - Step 5: Solve for x
x = 3,072,830,541,219.09/2,020,009.77 - Step 6: Final answer
x = 1,521,195.88
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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.