Finding the Fourth Proportional to 420,427.07, 580,202.93 and 239,134.34
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Solution
The fourth proportional to 420,427.07, 580,202.93 and 239,134.34 is: 330,013.10
Step by Step Solution
- Step 1: Write the proportion equation
420,427.07 : 580,202.93 = 239,134.34 : x - Step 2: Convert to fraction form
420,427.07/580,202.93 = 239,134.34/x - Step 3: Cross multiply
420,427.07x = 580,202.93 × 239,134.34 - Step 4: Simplify right side
420,427.07x = 138,746,440,634.93 - Step 5: Solve for x
x = 138,746,440,634.93/420,427.07 - Step 6: Final answer
x = 330,013.10
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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.