Finding the Fourth Proportional to 4,480,213.80, 6,720,320.70 and 3,220,501.80
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Solution
The fourth proportional to 4,480,213.80, 6,720,320.70 and 3,220,501.80 is: 4,830,752.70
Step by Step Solution
- Step 1: Write the proportion equation
4,480,213.80 : 6,720,320.70 = 3,220,501.80 : x - Step 2: Convert to fraction form
4,480,213.80/6,720,320.70 = 3,220,501.80/x - Step 3: Cross multiply
4,480,213.80x = 6,720,320.70 × 3,220,501.80 - Step 4: Simplify right side
4,480,213.80x = 21,642,804,910,927.26 - Step 5: Solve for x
x = 21,642,804,910,927.26/4,480,213.80 - Step 6: Final answer
x = 4,830,752.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.