Finding the Fourth Proportional to 2,120,774.97, 2,926,699.38 and 1,153,905.93
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Solution
The fourth proportional to 2,120,774.97, 2,926,699.38 and 1,153,905.93 is: 1,592,406.46
Step by Step Solution
- Step 1: Write the proportion equation
2,120,774.97 : 2,926,699.38 = 1,153,905.93 : x - Step 2: Convert to fraction form
2,120,774.97/2,926,699.38 = 1,153,905.93/x - Step 3: Cross multiply
2,120,774.97x = 2,926,699.38 × 1,153,905.93 - Step 4: Simplify right side
2,120,774.97x = 3,377,135,769,909.32 - Step 5: Solve for x
x = 3,377,135,769,909.32/2,120,774.97 - Step 6: Final answer
x = 1,592,406.46
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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.