Finding the Fourth Proportional to 621,478.24, 857,110.80 and 525,152.80
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Solution
The fourth proportional to 621,478.24, 857,110.80 and 525,152.80 is: 724,263.71
Step by Step Solution
- Step 1: Write the proportion equation
621,478.24 : 857,110.80 = 525,152.80 : x - Step 2: Convert to fraction form
621,478.24/857,110.80 = 525,152.80/x - Step 3: Cross multiply
621,478.24x = 857,110.80 × 525,152.80 - Step 4: Simplify right side
621,478.24x = 450,114,136,530.24 - Step 5: Solve for x
x = 450,114,136,530.24/621,478.24 - Step 6: Final answer
x = 724,263.71
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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.