Finding the Fourth Proportional to 515,798.48, 711,769.08 and 286,360.31
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Solution
The fourth proportional to 515,798.48, 711,769.08 and 286,360.31 is: 395,159.01
Step by Step Solution
- Step 1: Write the proportion equation
515,798.48 : 711,769.08 = 286,360.31 : x - Step 2: Convert to fraction form
515,798.48/711,769.08 = 286,360.31/x - Step 3: Cross multiply
515,798.48x = 711,769.08 × 286,360.31 - Step 4: Simplify right side
515,798.48x = 203,822,414,397.22 - Step 5: Solve for x
x = 203,822,414,397.22/515,798.48 - Step 6: Final answer
x = 395,159.01
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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.