Finding the Fourth Proportional to 515,248.36, 711,054.14 and 285,798.18
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Solution
The fourth proportional to 515,248.36, 711,054.14 and 285,798.18 is: 394,407.80
Step by Step Solution
- Step 1: Write the proportion equation
515,248.36 : 711,054.14 = 285,798.18 : x - Step 2: Convert to fraction form
515,248.36/711,054.14 = 285,798.18/x - Step 3: Cross multiply
515,248.36x = 711,054.14 × 285,798.18 - Step 4: Simplify right side
515,248.36x = 203,217,974,109.20 - Step 5: Solve for x
x = 203,217,974,109.20/515,248.36 - Step 6: Final answer
x = 394,407.80
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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.