Finding the Fourth Proportional to 1,971,257.81, 2,720,319.93 and 1,144,408.07
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Solution
The fourth proportional to 1,971,257.81, 2,720,319.93 and 1,144,408.07 is: 1,579,273.94
Step by Step Solution
- Step 1: Write the proportion equation
1,971,257.81 : 2,720,319.93 = 1,144,408.07 : x - Step 2: Convert to fraction form
1,971,257.81/2,720,319.93 = 1,144,408.07/x - Step 3: Cross multiply
1,971,257.81x = 2,720,319.93 × 1,144,408.07 - Step 4: Simplify right side
1,971,257.81x = 3,113,156,080,873.84 - Step 5: Solve for x
x = 3,113,156,080,873.84/1,971,257.81 - Step 6: Final answer
x = 1,579,273.94
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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.