Finding the Fourth Proportional to 2,157,130.44, 2,976,740.28 and 1,238,713.46
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Solution
The fourth proportional to 2,157,130.44, 2,976,740.28 and 1,238,713.46 is: 1,709,367.31
Step by Step Solution
- Step 1: Write the proportion equation
2,157,130.44 : 2,976,740.28 = 1,238,713.46 : x - Step 2: Convert to fraction form
2,157,130.44/2,976,740.28 = 1,238,713.46/x - Step 3: Cross multiply
2,157,130.44x = 2,976,740.28 × 1,238,713.46 - Step 4: Simplify right side
2,157,130.44x = 3,687,328,248,039.24 - Step 5: Solve for x
x = 3,687,328,248,039.24/2,157,130.44 - Step 6: Final answer
x = 1,709,367.31
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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.