Finding the Fourth Proportional to 708,118.83, 1,062,621.12 and 287,394.70
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Solution
The fourth proportional to 708,118.83, 1,062,621.12 and 287,394.70 is: 431,271.79
Step by Step Solution
- Step 1: Write the proportion equation
708,118.83 : 1,062,621.12 = 287,394.70 : x - Step 2: Convert to fraction form
708,118.83/1,062,621.12 = 287,394.70/x - Step 3: Cross multiply
708,118.83x = 1,062,621.12 × 287,394.70 - Step 4: Simplify right side
708,118.83x = 305,391,677,996.06 - Step 5: Solve for x
x = 305,391,677,996.06/708,118.83 - Step 6: Final answer
x = 431,271.79
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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.