Finding the Fourth Proportional to 3,564,218.70, 5,346,328.05 and 1,645,126.20
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Solution
The fourth proportional to 3,564,218.70, 5,346,328.05 and 1,645,126.20 is: 2,467,689.30
Step by Step Solution
- Step 1: Write the proportion equation
3,564,218.70 : 5,346,328.05 = 1,645,126.20 : x - Step 2: Convert to fraction form
3,564,218.70/5,346,328.05 = 1,645,126.20/x - Step 3: Cross multiply
3,564,218.70x = 5,346,328.05 × 1,645,126.20 - Step 4: Simplify right side
3,564,218.70x = 8,795,384,348,849.91 - Step 5: Solve for x
x = 8,795,384,348,849.91/3,564,218.70 - Step 6: Final answer
x = 2,467,689.30
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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.