Finding the Fourth Proportional to 1,790,478.29, 2,473,079.30 and 1,299,663.65
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Solution
The fourth proportional to 1,790,478.29, 2,473,079.30 and 1,299,663.65 is: 1,795,146.74
Step by Step Solution
- Step 1: Write the proportion equation
1,790,478.29 : 2,473,079.30 = 1,299,663.65 : x - Step 2: Convert to fraction form
1,790,478.29/2,473,079.30 = 1,299,663.65/x - Step 3: Cross multiply
1,790,478.29x = 2,473,079.30 × 1,299,663.65 - Step 4: Simplify right side
1,790,478.29x = 3,214,171,250,913.73 - Step 5: Solve for x
x = 3,214,171,250,913.73/1,790,478.29 - Step 6: Final answer
x = 1,795,146.74
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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.