Finding the Fourth Proportional to 487,655.26, 672,990.40 and 272,782.52
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Solution
The fourth proportional to 487,655.26, 672,990.40 and 272,782.52 is: 376,454.50
Step by Step Solution
- Step 1: Write the proportion equation
487,655.26 : 672,990.40 = 272,782.52 : x - Step 2: Convert to fraction form
487,655.26/672,990.40 = 272,782.52/x - Step 3: Cross multiply
487,655.26x = 672,990.40 × 272,782.52 - Step 4: Simplify right side
487,655.26x = 183,580,017,247.81 - Step 5: Solve for x
x = 183,580,017,247.81/487,655.26 - Step 6: Final answer
x = 376,454.50
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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.