Finding the Fourth Proportional to 2,039,959.90, 2,815,129.09 and 1,122,169.28
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Solution
The fourth proportional to 2,039,959.90, 2,815,129.09 and 1,122,169.28 is: 1,548,585.04
Step by Step Solution
- Step 1: Write the proportion equation
2,039,959.90 : 2,815,129.09 = 1,122,169.28 : x - Step 2: Convert to fraction form
2,039,959.90/2,815,129.09 = 1,122,169.28/x - Step 3: Cross multiply
2,039,959.90x = 2,815,129.09 × 1,122,169.28 - Step 4: Simplify right side
2,039,959.90x = 3,159,051,384,032.36 - Step 5: Solve for x
x = 3,159,051,384,032.36/2,039,959.90 - Step 6: Final answer
x = 1,548,585.04
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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.