Finding the Fourth Proportional to 518,336.93, 777,452.84 and 139,208.41
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Solution
The fourth proportional to 518,336.93, 777,452.84 and 139,208.41 is: 208,798.50
Step by Step Solution
- Step 1: Write the proportion equation
518,336.93 : 777,452.84 = 139,208.41 : x - Step 2: Convert to fraction form
518,336.93/777,452.84 = 139,208.41/x - Step 3: Cross multiply
518,336.93x = 777,452.84 × 139,208.41 - Step 4: Simplify right side
518,336.93x = 108,227,973,706.38 - Step 5: Solve for x
x = 108,227,973,706.38/518,336.93 - Step 6: Final answer
x = 208,798.50
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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.