Finding the Fourth Proportional to 2,229,776.68, 3,077,149.06 and 1,211,239.72
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Solution
The fourth proportional to 2,229,776.68, 3,077,149.06 and 1,211,239.72 is: 1,671,541.91
Step by Step Solution
- Step 1: Write the proportion equation
2,229,776.68 : 3,077,149.06 = 1,211,239.72 : x - Step 2: Convert to fraction form
2,229,776.68/3,077,149.06 = 1,211,239.72/x - Step 3: Cross multiply
2,229,776.68x = 3,077,149.06 × 1,211,239.72 - Step 4: Simplify right side
2,229,776.68x = 3,727,165,165,832.66 - Step 5: Solve for x
x = 3,727,165,165,832.66/2,229,776.68 - Step 6: Final answer
x = 1,671,541.91
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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.