Finding the Fourth Proportional to 915,396.70, 1,263,322.28 and 507,626.44
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Solution
The fourth proportional to 915,396.70, 1,263,322.28 and 507,626.44 is: 700,565.99
Step by Step Solution
- Step 1: Write the proportion equation
915,396.70 : 1,263,322.28 = 507,626.44 : x - Step 2: Convert to fraction form
915,396.70/1,263,322.28 = 507,626.44/x - Step 3: Cross multiply
915,396.70x = 1,263,322.28 × 507,626.44 - Step 4: Simplify right side
915,396.70x = 641,295,791,569.08 - Step 5: Solve for x
x = 641,295,791,569.08/915,396.70 - Step 6: Final answer
x = 700,565.99
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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.