Finding the Fourth Proportional to 425,589.80, 587,315.21 and 234,599.09
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Solution
The fourth proportional to 425,589.80, 587,315.21 and 234,599.09 is: 323,747.45
Step by Step Solution
- Step 1: Write the proportion equation
425,589.80 : 587,315.21 = 234,599.09 : x - Step 2: Convert to fraction form
425,589.80/587,315.21 = 234,599.09/x - Step 3: Cross multiply
425,589.80x = 587,315.21 × 234,599.09 - Step 4: Simplify right side
425,589.80x = 137,783,609,699.59 - Step 5: Solve for x
x = 137,783,609,699.59/425,589.80 - Step 6: Final answer
x = 323,747.45
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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.