Finding the Fourth Proportional to 515,797.98, 711,768.39 and 286,359.81
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Solution
The fourth proportional to 515,797.98, 711,768.39 and 286,359.81 is: 395,158.32
Step by Step Solution
- Step 1: Write the proportion equation
515,797.98 : 711,768.39 = 286,359.81 : x - Step 2: Convert to fraction form
515,797.98/711,768.39 = 286,359.81/x - Step 3: Cross multiply
515,797.98x = 711,768.39 × 286,359.81 - Step 4: Simplify right side
515,797.98x = 203,821,860,924.41 - Step 5: Solve for x
x = 203,821,860,924.41/515,797.98 - Step 6: Final answer
x = 395,158.32
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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.