Finding the Fourth Proportional to 913,431.09, 1,260,525.62 and 505,533.72
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Solution
The fourth proportional to 913,431.09, 1,260,525.62 and 505,533.72 is: 697,631.39
Step by Step Solution
- Step 1: Write the proportion equation
913,431.09 : 1,260,525.62 = 505,533.72 : x - Step 2: Convert to fraction form
913,431.09/1,260,525.62 = 505,533.72/x - Step 3: Cross multiply
913,431.09x = 1,260,525.62 × 505,533.72 - Step 4: Simplify right side
913,431.09x = 637,238,203,306.24 - Step 5: Solve for x
x = 637,238,203,306.24/913,431.09 - Step 6: Final answer
x = 697,631.39
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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.