Finding the Fourth Proportional to 1,913,047.08, 2,639,972.52 and 1,053,687.48
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Solution
The fourth proportional to 1,913,047.08, 2,639,972.52 and 1,053,687.48 is: 1,454,070.85
Step by Step Solution
- Step 1: Write the proportion equation
1,913,047.08 : 2,639,972.52 = 1,053,687.48 : x - Step 2: Convert to fraction form
1,913,047.08/2,639,972.52 = 1,053,687.48/x - Step 3: Cross multiply
1,913,047.08x = 2,639,972.52 × 1,053,687.48 - Step 4: Simplify right side
1,913,047.08x = 2,781,705,991,868.05 - Step 5: Solve for x
x = 2,781,705,991,868.05/1,913,047.08 - Step 6: Final answer
x = 1,454,070.85
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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.