Finding the Fourth Proportional to 1,246,253.12, 1,868,631 and 487,190.53
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Solution
The fourth proportional to 1,246,253.12, 1,868,631 and 487,190.53 is: 730,493.11
Step by Step Solution
- Step 1: Write the proportion equation
1,246,253.12 : 1,868,631 = 487,190.53 : x - Step 2: Convert to fraction form
1,246,253.12/1,868,631 = 487,190.53/x - Step 3: Cross multiply
1,246,253.12x = 1,868,631 × 487,190.53 - Step 4: Simplify right side
1,246,253.12x = 910,379,317,921.28 - Step 5: Solve for x
x = 910,379,317,921.28/1,246,253.12 - Step 6: Final answer
x = 730,493.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.