Finding the Fourth Proportional to 1,979,299.92, 2,730,621.99 and 1,204,309.47
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Solution
The fourth proportional to 1,979,299.92, 2,730,621.99 and 1,204,309.47 is: 1,661,453.07
Step by Step Solution
- Step 1: Write the proportion equation
1,979,299.92 : 2,730,621.99 = 1,204,309.47 : x - Step 2: Convert to fraction form
1,979,299.92/2,730,621.99 = 1,204,309.47/x - Step 3: Cross multiply
1,979,299.92x = 2,730,621.99 × 1,204,309.47 - Step 4: Simplify right side
1,979,299.92x = 3,288,513,921,547.25 - Step 5: Solve for x
x = 3,288,513,921,547.25/1,979,299.92 - Step 6: Final answer
x = 1,661,453.07
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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.