Finding the Fourth Proportional to 527,427.12, 727,852.92 and 285,709.70
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Solution
The fourth proportional to 527,427.12, 727,852.92 and 285,709.70 is: 394,281.28
Step by Step Solution
- Step 1: Write the proportion equation
527,427.12 : 727,852.92 = 285,709.70 : x - Step 2: Convert to fraction form
527,427.12/727,852.92 = 285,709.70/x - Step 3: Cross multiply
527,427.12x = 727,852.92 × 285,709.70 - Step 4: Simplify right side
527,427.12x = 207,954,639,417.32 - Step 5: Solve for x
x = 207,954,639,417.32/527,427.12 - Step 6: Final answer
x = 394,281.28
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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.