Finding the Fourth Proportional to 3,087,014.09, 4,260,079.45 and 1,728,887.09
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Solution
The fourth proportional to 3,087,014.09, 4,260,079.45 and 1,728,887.09 is: 2,385,864.19
Step by Step Solution
- Step 1: Write the proportion equation
3,087,014.09 : 4,260,079.45 = 1,728,887.09 : x - Step 2: Convert to fraction form
3,087,014.09/4,260,079.45 = 1,728,887.09/x - Step 3: Cross multiply
3,087,014.09x = 4,260,079.45 × 1,728,887.09 - Step 4: Simplify right side
3,087,014.09x = 7,365,196,363,479.30 - Step 5: Solve for x
x = 7,365,196,363,479.30/3,087,014.09 - Step 6: Final answer
x = 2,385,864.19
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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.