Finding the Fourth Proportional to 914,742.99, 1,372,332.51 and 315,709.38
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Solution
The fourth proportional to 914,742.99, 1,372,332.51 and 315,709.38 is: 473,639.32
Step by Step Solution
- Step 1: Write the proportion equation
914,742.99 : 1,372,332.51 = 315,709.38 : x - Step 2: Convert to fraction form
914,742.99/1,372,332.51 = 315,709.38/x - Step 3: Cross multiply
914,742.99x = 1,372,332.51 × 315,709.38 - Step 4: Simplify right side
914,742.99x = 433,258,245,885.94 - Step 5: Solve for x
x = 433,258,245,885.94/914,742.99 - Step 6: Final answer
x = 473,639.32
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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.