Finding the Fourth Proportional to 805,446.78, 1,111,520.64 and 442,894.02
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Solution
The fourth proportional to 805,446.78, 1,111,520.64 and 442,894.02 is: 611,195.99
Step by Step Solution
- Step 1: Write the proportion equation
805,446.78 : 1,111,520.64 = 442,894.02 : x - Step 2: Convert to fraction form
805,446.78/1,111,520.64 = 442,894.02/x - Step 3: Cross multiply
805,446.78x = 1,111,520.64 × 442,894.02 - Step 4: Simplify right side
805,446.78x = 492,285,844,562.57 - Step 5: Solve for x
x = 492,285,844,562.57/805,446.78 - Step 6: Final answer
x = 611,195.99
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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.