Finding the Fourth Proportional to 527,438.08, 727,866.75 and 285,720.63
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Solution
The fourth proportional to 527,438.08, 727,866.75 and 285,720.63 is: 394,295.66
Step by Step Solution
- Step 1: Write the proportion equation
527,438.08 : 727,866.75 = 285,720.63 : x - Step 2: Convert to fraction form
527,438.08/727,866.75 = 285,720.63/x - Step 3: Cross multiply
527,438.08x = 727,866.75 × 285,720.63 - Step 4: Simplify right side
527,438.08x = 207,966,543,722.59 - Step 5: Solve for x
x = 207,966,543,722.59/527,438.08 - Step 6: Final answer
x = 394,295.66
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1.5x scale
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.