Finding the Fourth Proportional to 420,559.36, 580,364.49 and 239,267.40
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Solution
The fourth proportional to 420,559.36, 580,364.49 and 239,267.40 is: 330,184.79
Step by Step Solution
- Step 1: Write the proportion equation
420,559.36 : 580,364.49 = 239,267.40 : x - Step 2: Convert to fraction form
420,559.36/580,364.49 = 239,267.40/x - Step 3: Cross multiply
420,559.36x = 580,364.49 × 239,267.40 - Step 4: Simplify right side
420,559.36x = 138,862,301,821.75 - Step 5: Solve for x
x = 138,862,301,821.75/420,559.36 - Step 6: Final answer
x = 330,184.79
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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.