Finding the Fourth Proportional to 528,860.40, 793,630.80 and 292,372.80
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Solution
The fourth proportional to 528,860.40, 793,630.80 and 292,372.80 is: 438,747.27
Step by Step Solution
- Step 1: Write the proportion equation
528,860.40 : 793,630.80 = 292,372.80 : x - Step 2: Convert to fraction form
528,860.40/793,630.80 = 292,372.80/x - Step 3: Cross multiply
528,860.40x = 793,630.80 × 292,372.80 - Step 4: Simplify right side
528,860.40x = 232,036,059,162.24 - Step 5: Solve for x
x = 232,036,059,162.24/528,860.40 - Step 6: Final answer
x = 438,747.27
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1.5x scale
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.