Finding the Fourth Proportional to 1,586,938.02, 2,190,644.80 and 1,071,390.18
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Solution
The fourth proportional to 1,586,938.02, 2,190,644.80 and 1,071,390.18 is: 1,478,971.01
Step by Step Solution
- Step 1: Write the proportion equation
1,586,938.02 : 2,190,644.80 = 1,071,390.18 : x - Step 2: Convert to fraction form
1,586,938.02/2,190,644.80 = 1,071,390.18/x - Step 3: Cross multiply
1,586,938.02x = 2,190,644.80 × 1,071,390.18 - Step 4: Simplify right side
1,586,938.02x = 2,347,035,325,828.70 - Step 5: Solve for x
x = 2,347,035,325,828.70/1,586,938.02 - Step 6: Final answer
x = 1,478,971.01
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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.