Finding the Fourth Proportional to 515,502.68, 711,392.22 and 286,094.58
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Solution
The fourth proportional to 515,502.68, 711,392.22 and 286,094.58 is: 394,809.70
Step by Step Solution
- Step 1: Write the proportion equation
515,502.68 : 711,392.22 = 286,094.58 : x - Step 2: Convert to fraction form
515,502.68/711,392.22 = 286,094.58/x - Step 3: Cross multiply
515,502.68x = 711,392.22 × 286,094.58 - Step 4: Simplify right side
515,502.68x = 203,525,459,730.03 - Step 5: Solve for x
x = 203,525,459,730.03/515,502.68 - Step 6: Final answer
x = 394,809.70
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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.