Finding the Fourth Proportional to 624,487.09, 861,813.07 and 382,722.94
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Solution
The fourth proportional to 624,487.09, 861,813.07 and 382,722.94 is: 528,170.46
Step by Step Solution
- Step 1: Write the proportion equation
624,487.09 : 861,813.07 = 382,722.94 : x - Step 2: Convert to fraction form
624,487.09/861,813.07 = 382,722.94/x - Step 3: Cross multiply
624,487.09x = 861,813.07 × 382,722.94 - Step 4: Simplify right side
624,487.09x = 329,835,629,967.21 - Step 5: Solve for x
x = 329,835,629,967.21/624,487.09 - Step 6: Final answer
x = 528,170.46
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1.5x scale
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.