Finding the Fourth Proportional to 624,630.12, 861,991.52 and 338,149.53
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Solution
The fourth proportional to 624,630.12, 861,991.52 and 338,149.53 is: 466,647.41
Step by Step Solution
- Step 1: Write the proportion equation
624,630.12 : 861,991.52 = 338,149.53 : x - Step 2: Convert to fraction form
624,630.12/861,991.52 = 338,149.53/x - Step 3: Cross multiply
624,630.12x = 861,991.52 × 338,149.53 - Step 4: Simplify right side
624,630.12x = 291,482,025,661.24 - Step 5: Solve for x
x = 291,482,025,661.24/624,630.12 - Step 6: Final answer
x = 466,647.41
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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.