Finding the Fourth Proportional to 1,239,979.11, 1,711,169.88 and 696,115.95
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Solution
The fourth proportional to 1,239,979.11, 1,711,169.88 and 696,115.95 is: 960,639.29
Step by Step Solution
- Step 1: Write the proportion equation
1,239,979.11 : 1,711,169.88 = 696,115.95 : x - Step 2: Convert to fraction form
1,239,979.11/1,711,169.88 = 696,115.95/x - Step 3: Cross multiply
1,239,979.11x = 1,711,169.88 × 696,115.95 - Step 4: Simplify right side
1,239,979.11x = 1,191,172,646,573.27 - Step 5: Solve for x
x = 1,191,172,646,573.27/1,239,979.11 - Step 6: Final answer
x = 960,639.29
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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.