Finding the Fourth Proportional to 527,117.18, 727,420.62 and 285,399.98
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Solution
The fourth proportional to 527,117.18, 727,420.62 and 285,399.98 is: 393,851.38
Step by Step Solution
- Step 1: Write the proportion equation
527,117.18 : 727,420.62 = 285,399.98 : x - Step 2: Convert to fraction form
527,117.18/727,420.62 = 285,399.98/x - Step 3: Cross multiply
527,117.18x = 727,420.62 × 285,399.98 - Step 4: Simplify right side
527,117.18x = 207,605,830,399.59 - Step 5: Solve for x
x = 207,605,830,399.59/527,117.18 - Step 6: Final answer
x = 393,851.38
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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.