Finding the Fourth Proportional to 1,544,820.64, 2,131,855.08 and 865,757.12
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Solution
The fourth proportional to 1,544,820.64, 2,131,855.08 and 865,757.12 is: 1,194,746.28
Step by Step Solution
- Step 1: Write the proportion equation
1,544,820.64 : 2,131,855.08 = 865,757.12 : x - Step 2: Convert to fraction form
1,544,820.64/2,131,855.08 = 865,757.12/x - Step 3: Cross multiply
1,544,820.64x = 2,131,855.08 × 865,757.12 - Step 4: Simplify right side
1,544,820.64x = 1,845,668,714,318.17 - Step 5: Solve for x
x = 1,845,668,714,318.17/1,544,820.64 - Step 6: Final answer
x = 1,194,746.28
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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.