Finding the Fourth Proportional to 551,089.80, 826,634.70 and 411,121.80
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Solution
The fourth proportional to 551,089.80, 826,634.70 and 411,121.80 is: 616,682.70
Step by Step Solution
- Step 1: Write the proportion equation
551,089.80 : 826,634.70 = 411,121.80 : x - Step 2: Convert to fraction form
551,089.80/826,634.70 = 411,121.80/x - Step 3: Cross multiply
551,089.80x = 826,634.70 × 411,121.80 - Step 4: Simplify right side
551,089.80x = 339,847,545,806.46 - Step 5: Solve for x
x = 339,847,545,806.46/551,089.80 - Step 6: Final answer
x = 616,682.70
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1.5x scale
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.