Finding the Fourth Proportional to 906,315.12, 1,250,204.76 and 543,642.48
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Solution
The fourth proportional to 906,315.12, 1,250,204.76 and 543,642.48 is: 749,920.64
Step by Step Solution
- Step 1: Write the proportion equation
906,315.12 : 1,250,204.76 = 543,642.48 : x - Step 2: Convert to fraction form
906,315.12/1,250,204.76 = 543,642.48/x - Step 3: Cross multiply
906,315.12x = 1,250,204.76 × 543,642.48 - Step 4: Simplify right side
906,315.12x = 679,664,416,234.21 - Step 5: Solve for x
x = 679,664,416,234.21/906,315.12 - Step 6: Final answer
x = 749,920.64
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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.