Finding the Fourth Proportional to 857,708.80, 1,286,563.20 and 842,963.20
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Solution
The fourth proportional to 857,708.80, 1,286,563.20 and 842,963.20 is: 1,264,444.80
Step by Step Solution
- Step 1: Write the proportion equation
857,708.80 : 1,286,563.20 = 842,963.20 : x - Step 2: Convert to fraction form
857,708.80/1,286,563.20 = 842,963.20/x - Step 3: Cross multiply
857,708.80x = 1,286,563.20 × 842,963.20 - Step 4: Simplify right side
857,708.80x = 1,084,525,432,074.24 - Step 5: Solve for x
x = 1,084,525,432,074.24/857,708.80 - Step 6: Final answer
x = 1,264,444.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.