Finding the Fourth Proportional to 1,529,207.28, 2,110,261.46 and 840,878.40
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Solution
The fourth proportional to 1,529,207.28, 2,110,261.46 and 840,878.40 is: 1,160,387.67
Step by Step Solution
- Step 1: Write the proportion equation
1,529,207.28 : 2,110,261.46 = 840,878.40 : x - Step 2: Convert to fraction form
1,529,207.28/2,110,261.46 = 840,878.40/x - Step 3: Cross multiply
1,529,207.28x = 2,110,261.46 × 840,878.40 - Step 4: Simplify right side
1,529,207.28x = 1,774,473,275,862.07 - Step 5: Solve for x
x = 1,774,473,275,862.07/1,529,207.28 - Step 6: Final answer
x = 1,160,387.67
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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.