Finding the Fourth Proportional to 1,686,572.70, 2,529,859.05 and 1,119,702.30
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Solution
The fourth proportional to 1,686,572.70, 2,529,859.05 and 1,119,702.30 is: 1,679,553.45
Step by Step Solution
- Step 1: Write the proportion equation
1,686,572.70 : 2,529,859.05 = 1,119,702.30 : x - Step 2: Convert to fraction form
1,686,572.70/2,529,859.05 = 1,119,702.30/x - Step 3: Cross multiply
1,686,572.70x = 2,529,859.05 × 1,119,702.30 - Step 4: Simplify right side
1,686,572.70x = 2,832,688,996,960.82 - Step 5: Solve for x
x = 2,832,688,996,960.82/1,686,572.70 - Step 6: Final answer
x = 1,679,553.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.