Finding the Fourth Proportional to 487,453.02, 672,778.16 and 326,588.55
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Solution
The fourth proportional to 487,453.02, 672,778.16 and 326,588.55 is: 450,754.50
Step by Step Solution
- Step 1: Write the proportion equation
487,453.02 : 672,778.16 = 326,588.55 : x - Step 2: Convert to fraction form
487,453.02/672,778.16 = 326,588.55/x - Step 3: Cross multiply
487,453.02x = 672,778.16 × 326,588.55 - Step 4: Simplify right side
487,453.02x = 219,721,642,113.13 - Step 5: Solve for x
x = 219,721,642,113.13/487,453.02 - Step 6: Final answer
x = 450,754.50
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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.