Finding the Fourth Proportional to 2,156,252.80, 2,975,649.60 and 1,189,423.84
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Solution
The fourth proportional to 2,156,252.80, 2,975,649.60 and 1,189,423.84 is: 1,641,416.34
Step by Step Solution
- Step 1: Write the proportion equation
2,156,252.80 : 2,975,649.60 = 1,189,423.84 : x - Step 2: Convert to fraction form
2,156,252.80/2,975,649.60 = 1,189,423.84/x - Step 3: Cross multiply
2,156,252.80x = 2,975,649.60 × 1,189,423.84 - Step 4: Simplify right side
2,156,252.80x = 3,539,308,573,726.46 - Step 5: Solve for x
x = 3,539,308,573,726.46/2,156,252.80 - Step 6: Final answer
x = 1,641,416.34
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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.