Finding the Fourth Proportional to 2,889,905.81, 3,988,201.31 and 1,600,746.05
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Solution
The fourth proportional to 2,889,905.81, 3,988,201.31 and 1,600,746.05 is: 2,209,102.27
Step by Step Solution
- Step 1: Write the proportion equation
2,889,905.81 : 3,988,201.31 = 1,600,746.05 : x - Step 2: Convert to fraction form
2,889,905.81/3,988,201.31 = 1,600,746.05/x - Step 3: Cross multiply
2,889,905.81x = 3,988,201.31 × 1,600,746.05 - Step 4: Simplify right side
2,889,905.81x = 6,384,097,465,642.59 - Step 5: Solve for x
x = 6,384,097,465,642.59/2,889,905.81 - Step 6: Final answer
x = 2,209,102.27
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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.