Finding the Fourth Proportional to 528,604.20, 791,286.30 and 291,220.20
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Solution
The fourth proportional to 528,604.20, 791,286.30 and 291,220.20 is: 435,937.80
Step by Step Solution
- Step 1: Write the proportion equation
528,604.20 : 791,286.30 = 291,220.20 : x - Step 2: Convert to fraction form
528,604.20/791,286.30 = 291,220.20/x - Step 3: Cross multiply
528,604.20x = 791,286.30 × 291,220.20 - Step 4: Simplify right side
528,604.20x = 230,438,554,543.26 - Step 5: Solve for x
x = 230,438,554,543.26/528,604.20 - Step 6: Final answer
x = 435,937.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.