Finding the Fourth Proportional to 508,902.20, 763,353.30 and 459,135.80
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Solution
The fourth proportional to 508,902.20, 763,353.30 and 459,135.80 is: 688,703.70
Step by Step Solution
- Step 1: Write the proportion equation
508,902.20 : 763,353.30 = 459,135.80 : x - Step 2: Convert to fraction form
508,902.20/763,353.30 = 459,135.80/x - Step 3: Cross multiply
508,902.20x = 763,353.30 × 459,135.80 - Step 4: Simplify right side
508,902.20x = 350,482,828,078.14 - Step 5: Solve for x
x = 350,482,828,078.14/508,902.20 - Step 6: Final answer
x = 688,703.70
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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.