Finding the Fourth Proportional to 649,135.20, 973,702.80 and 538,543.20
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Solution
The fourth proportional to 649,135.20, 973,702.80 and 538,543.20 is: 807,814.80
Step by Step Solution
- Step 1: Write the proportion equation
649,135.20 : 973,702.80 = 538,543.20 : x - Step 2: Convert to fraction form
649,135.20/973,702.80 = 538,543.20/x - Step 3: Cross multiply
649,135.20x = 973,702.80 × 538,543.20 - Step 4: Simplify right side
649,135.20x = 524,381,021,760.96 - Step 5: Solve for x
x = 524,381,021,760.96/649,135.20 - Step 6: Final answer
x = 807,814.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.