Finding the Fourth Proportional to 1,157,511.70, 1,597,377.36 and 641,276.58
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Solution
The fourth proportional to 1,157,511.70, 1,597,377.36 and 641,276.58 is: 884,967.89
Step by Step Solution
- Step 1: Write the proportion equation
1,157,511.70 : 1,597,377.36 = 641,276.58 : x - Step 2: Convert to fraction form
1,157,511.70/1,597,377.36 = 641,276.58/x - Step 3: Cross multiply
1,157,511.70x = 1,597,377.36 × 641,276.58 - Step 4: Simplify right side
1,157,511.70x = 1,024,360,686,192.75 - Step 5: Solve for x
x = 1,024,360,686,192.75/1,157,511.70 - Step 6: Final answer
x = 884,967.89
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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.