Finding the Fourth Proportional to 1,331,817.65, 1,837,863.60 and 842,050.79
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Solution
The fourth proportional to 1,331,817.65, 1,837,863.60 and 842,050.79 is: 1,162,001.79
Step by Step Solution
- Step 1: Write the proportion equation
1,331,817.65 : 1,837,863.60 = 842,050.79 : x - Step 2: Convert to fraction form
1,331,817.65/1,837,863.60 = 842,050.79/x - Step 3: Cross multiply
1,331,817.65x = 1,837,863.60 × 842,050.79 - Step 4: Simplify right side
1,331,817.65x = 1,547,574,491,386.77 - Step 5: Solve for x
x = 1,547,574,491,386.77/1,331,817.65 - Step 6: Final answer
x = 1,162,001.79
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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.