Finding the Fourth Proportional to 624,628.62, 861,989.44 and 338,148.02
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Solution
The fourth proportional to 624,628.62, 861,989.44 and 338,148.02 is: 466,645.32
Step by Step Solution
- Step 1: Write the proportion equation
624,628.62 : 861,989.44 = 338,148.02 : x - Step 2: Convert to fraction form
624,628.62/861,989.44 = 338,148.02/x - Step 3: Cross multiply
624,628.62x = 861,989.44 × 338,148.02 - Step 4: Simplify right side
624,628.62x = 291,480,024,340.54 - Step 5: Solve for x
x = 291,480,024,340.54/624,628.62 - Step 6: Final answer
x = 466,645.32
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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.