Finding the Fourth Proportional to 420,848.57, 580,770.99 and 229,862.39
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Solution
The fourth proportional to 420,848.57, 580,770.99 and 229,862.39 is: 317,210.08
Step by Step Solution
- Step 1: Write the proportion equation
420,848.57 : 580,770.99 = 229,862.39 : x - Step 2: Convert to fraction form
420,848.57/580,770.99 = 229,862.39/x - Step 3: Cross multiply
420,848.57x = 580,770.99 × 229,862.39 - Step 4: Simplify right side
420,848.57x = 133,497,404,900.21 - Step 5: Solve for x
x = 133,497,404,900.21/420,848.57 - Step 6: Final answer
x = 317,210.08
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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.