Finding the Fourth Proportional to 857,686.68, 1,286,114.04 and 258,536.16
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Solution
The fourth proportional to 857,686.68, 1,286,114.04 and 258,536.16 is: 387,678.85
Step by Step Solution
- Step 1: Write the proportion equation
857,686.68 : 1,286,114.04 = 258,536.16 : x - Step 2: Convert to fraction form
857,686.68/1,286,114.04 = 258,536.16/x - Step 3: Cross multiply
857,686.68x = 1,286,114.04 × 258,536.16 - Step 4: Simplify right side
857,686.68x = 332,506,985,223.69 - Step 5: Solve for x
x = 332,506,985,223.69/857,686.68 - Step 6: Final answer
x = 387,678.85
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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.