Finding the Fourth Proportional to 2,431,796.12, 3,355,881.88 and 1,399,283.36
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Solution
The fourth proportional to 2,431,796.12, 3,355,881.88 and 1,399,283.36 is: 1,931,012.90
Step by Step Solution
- Step 1: Write the proportion equation
2,431,796.12 : 3,355,881.88 = 1,399,283.36 : x - Step 2: Convert to fraction form
2,431,796.12/3,355,881.88 = 1,399,283.36/x - Step 3: Cross multiply
2,431,796.12x = 3,355,881.88 × 1,399,283.36 - Step 4: Simplify right side
2,431,796.12x = 4,695,829,672,809.52 - Step 5: Solve for x
x = 4,695,829,672,809.52/2,431,796.12 - Step 6: Final answer
x = 1,931,012.90
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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.