Finding the Fourth Proportional to 420,610.87, 580,476.12 and 239,330.44
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Solution
The fourth proportional to 420,610.87, 580,476.12 and 239,330.44 is: 330,294.85
Step by Step Solution
- Step 1: Write the proportion equation
420,610.87 : 580,476.12 = 239,330.44 : x - Step 2: Convert to fraction form
420,610.87/580,476.12 = 239,330.44/x - Step 3: Cross multiply
420,610.87x = 580,476.12 × 239,330.44 - Step 4: Simplify right side
420,610.87x = 138,925,605,209.09 - Step 5: Solve for x
x = 138,925,605,209.09/420,610.87 - Step 6: Final answer
x = 330,294.85
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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.