Finding the Fourth Proportional to 2,117,905.31, 2,922,731.90 and 1,151,035.65
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Solution
The fourth proportional to 2,117,905.31, 2,922,731.90 and 1,151,035.65 is: 1,588,441.46
Step by Step Solution
- Step 1: Write the proportion equation
2,117,905.31 : 2,922,731.90 = 1,151,035.65 : x - Step 2: Convert to fraction form
2,117,905.31/2,922,731.90 = 1,151,035.65/x - Step 3: Cross multiply
2,117,905.31x = 2,922,731.90 × 1,151,035.65 - Step 4: Simplify right side
2,117,905.31x = 3,364,168,612,292.24 - Step 5: Solve for x
x = 3,364,168,612,292.24/2,117,905.31 - Step 6: Final answer
x = 1,588,441.46
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1.5x scale
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.