Finding the Fourth Proportional to 1,247,840.88, 1,722,020.40 and 674,881.08
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Solution
The fourth proportional to 1,247,840.88, 1,722,020.40 and 674,881.08 is: 931,335.88
Step by Step Solution
- Step 1: Write the proportion equation
1,247,840.88 : 1,722,020.40 = 674,881.08 : x - Step 2: Convert to fraction form
1,247,840.88/1,722,020.40 = 674,881.08/x - Step 3: Cross multiply
1,247,840.88x = 1,722,020.40 × 674,881.08 - Step 4: Simplify right side
1,247,840.88x = 1,162,158,987,334.03 - Step 5: Solve for x
x = 1,162,158,987,334.03/1,247,840.88 - Step 6: Final answer
x = 931,335.88
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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.