Finding the Fourth Proportional to 572,575.50, 790,187.00 and 317,943.09
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Solution
The fourth proportional to 572,575.50, 790,187.00 and 317,943.09 is: 438,779.68
Step by Step Solution
- Step 1: Write the proportion equation
572,575.50 : 790,187.00 = 317,943.09 : x - Step 2: Convert to fraction form
572,575.50/790,187.00 = 317,943.09/x - Step 3: Cross multiply
572,575.50x = 790,187.00 × 317,943.09 - Step 4: Simplify right side
572,575.50x = 251,234,494,868.12 - Step 5: Solve for x
x = 251,234,494,868.12/572,575.50 - Step 6: Final answer
x = 438,779.68
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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.