Finding the Fourth Proportional to 624,628.71, 861,989.57 and 338,148.12
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Solution
The fourth proportional to 624,628.71, 861,989.57 and 338,148.12 is: 466,645.45
Step by Step Solution
- Step 1: Write the proportion equation
624,628.71 : 861,989.57 = 338,148.12 : x - Step 2: Convert to fraction form
624,628.71/861,989.57 = 338,148.12/x - Step 3: Cross multiply
624,628.71x = 861,989.57 × 338,148.12 - Step 4: Simplify right side
624,628.71x = 291,480,147,631.91 - Step 5: Solve for x
x = 291,480,147,631.91/624,628.71 - Step 6: Final answer
x = 466,645.45
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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.