Finding the Fourth Proportional to 708,134.24, 1,062,643.92 and 287,410.12
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Solution
The fourth proportional to 708,134.24, 1,062,643.92 and 287,410.12 is: 431,294.80
Step by Step Solution
- Step 1: Write the proportion equation
708,134.24 : 1,062,643.92 = 287,410.12 : x - Step 2: Convert to fraction form
708,134.24/1,062,643.92 = 287,410.12/x - Step 3: Cross multiply
708,134.24x = 1,062,643.92 × 287,410.12 - Step 4: Simplify right side
708,134.24x = 305,414,616,564.47 - Step 5: Solve for x
x = 305,414,616,564.47/708,134.24 - Step 6: Final answer
x = 431,294.80
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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.