Finding the Fourth Proportional to 915,188.42, 1,371,814.73 and 338,441.09
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Solution
The fourth proportional to 915,188.42, 1,371,814.73 and 338,441.09 is: 507,303.69
Step by Step Solution
- Step 1: Write the proportion equation
915,188.42 : 1,371,814.73 = 338,441.09 : x - Step 2: Convert to fraction form
915,188.42/1,371,814.73 = 338,441.09/x - Step 3: Cross multiply
915,188.42x = 1,371,814.73 × 338,441.09 - Step 4: Simplify right side
915,188.42x = 464,278,465,217.13 - Step 5: Solve for x
x = 464,278,465,217.13/915,188.42 - Step 6: Final answer
x = 507,303.69
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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.