Finding the Fourth Proportional to 2,133,507.68, 2,942,853.36 and 1,368,349.28
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Solution
The fourth proportional to 2,133,507.68, 2,942,853.36 and 1,368,349.28 is: 1,887,432.29
Step by Step Solution
- Step 1: Write the proportion equation
2,133,507.68 : 2,942,853.36 = 1,368,349.28 : x - Step 2: Convert to fraction form
2,133,507.68/2,942,853.36 = 1,368,349.28/x - Step 3: Cross multiply
2,133,507.68x = 2,942,853.36 × 1,368,349.28 - Step 4: Simplify right side
2,133,507.68x = 4,026,851,276,301.58 - Step 5: Solve for x
x = 4,026,851,276,301.58/2,133,507.68 - Step 6: Final answer
x = 1,887,432.29
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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.