Finding the Fourth Proportional to 518,824.18, 778,177.92 and 139,772.92
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Solution
The fourth proportional to 518,824.18, 778,177.92 and 139,772.92 is: 209,643.66
Step by Step Solution
- Step 1: Write the proportion equation
518,824.18 : 778,177.92 = 139,772.92 : x - Step 2: Convert to fraction form
518,824.18/778,177.92 = 139,772.92/x - Step 3: Cross multiply
518,824.18x = 778,177.92 × 139,772.92 - Step 4: Simplify right side
518,824.18x = 108,768,200,157.93 - Step 5: Solve for x
x = 108,768,200,157.93/518,824.18 - Step 6: Final answer
x = 209,643.66
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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.