Finding the Fourth Proportional to 2,101,981.24, 2,900,720.89 and 1,184,505.09
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Solution
The fourth proportional to 2,101,981.24, 2,900,720.89 and 1,184,505.09 is: 1,634,609.57
Step by Step Solution
- Step 1: Write the proportion equation
2,101,981.24 : 2,900,720.89 = 1,184,505.09 : x - Step 2: Convert to fraction form
2,101,981.24/2,900,720.89 = 1,184,505.09/x - Step 3: Cross multiply
2,101,981.24x = 2,900,720.89 × 1,184,505.09 - Step 4: Simplify right side
2,101,981.24x = 3,435,918,658,874.33 - Step 5: Solve for x
x = 3,435,918,658,874.33/2,101,981.24 - Step 6: Final answer
x = 1,634,609.57
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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.