Finding the Fourth Proportional to 1,121,029.80, 1,547,053.88 and 611,764.96
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Solution
The fourth proportional to 1,121,029.80, 1,547,053.88 and 611,764.96 is: 844,253.52
Step by Step Solution
- Step 1: Write the proportion equation
1,121,029.80 : 1,547,053.88 = 611,764.96 : x - Step 2: Convert to fraction form
1,121,029.80/1,547,053.88 = 611,764.96/x - Step 3: Cross multiply
1,121,029.80x = 1,547,053.88 × 611,764.96 - Step 4: Simplify right side
1,121,029.80x = 946,433,355,016.05 - Step 5: Solve for x
x = 946,433,355,016.05/1,121,029.80 - Step 6: Final answer
x = 844,253.52
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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.