Finding the Fourth Proportional to 916,496.44, 1,264,778.84 and 508,624.70
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Solution
The fourth proportional to 916,496.44, 1,264,778.84 and 508,624.70 is: 701,909.72
Step by Step Solution
- Step 1: Write the proportion equation
916,496.44 : 1,264,778.84 = 508,624.70 : x - Step 2: Convert to fraction form
916,496.44/1,264,778.84 = 508,624.70/x - Step 3: Cross multiply
916,496.44x = 1,264,778.84 × 508,624.70 - Step 4: Simplify right side
916,496.44x = 643,297,758,061.35 - Step 5: Solve for x
x = 643,297,758,061.35/916,496.44 - Step 6: Final answer
x = 701,909.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.