Finding the Fourth Proportional to 432,349.42, 649,508.26 and 312,775.20
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Solution
The fourth proportional to 432,349.42, 649,508.26 and 312,775.20 is: 469,874.75
Step by Step Solution
- Step 1: Write the proportion equation
432,349.42 : 649,508.26 = 312,775.20 : x - Step 2: Convert to fraction form
432,349.42/649,508.26 = 312,775.20/x - Step 3: Cross multiply
432,349.42x = 649,508.26 × 312,775.20 - Step 4: Simplify right side
432,349.42x = 203,150,075,923.15 - Step 5: Solve for x
x = 203,150,075,923.15/432,349.42 - Step 6: Final answer
x = 469,874.75
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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.