Finding the Fourth Proportional to 527,120.16, 727,424.80 and 285,402.96
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Solution
The fourth proportional to 527,120.16, 727,424.80 and 285,402.96 is: 393,855.53
Step by Step Solution
- Step 1: Write the proportion equation
527,120.16 : 727,424.80 = 285,402.96 : x - Step 2: Convert to fraction form
527,120.16/727,424.80 = 285,402.96/x - Step 3: Cross multiply
527,120.16x = 727,424.80 × 285,402.96 - Step 4: Simplify right side
527,120.16x = 207,609,191,097.41 - Step 5: Solve for x
x = 207,609,191,097.41/527,120.16 - Step 6: Final answer
x = 393,855.53
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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.