Finding the Fourth Proportional to 659,992.70, 988,239.45 and 520,024.70
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Solution
The fourth proportional to 659,992.70, 988,239.45 and 520,024.70 is: 778,658.50
Step by Step Solution
- Step 1: Write the proportion equation
659,992.70 : 988,239.45 = 520,024.70 : x - Step 2: Convert to fraction form
659,992.70/988,239.45 = 520,024.70/x - Step 3: Cross multiply
659,992.70x = 988,239.45 × 520,024.70 - Step 4: Simplify right side
659,992.70x = 513,908,923,514.42 - Step 5: Solve for x
x = 513,908,923,514.42/659,992.70 - Step 6: Final answer
x = 778,658.50
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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.