Finding the Fourth Proportional to 1,487,633.70, 2,233,783.35 and 857,777.70
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Solution
The fourth proportional to 1,487,633.70, 2,233,783.35 and 857,777.70 is: 1,288,011.66
Step by Step Solution
- Step 1: Write the proportion equation
1,487,633.70 : 2,233,783.35 = 857,777.70 : x - Step 2: Convert to fraction form
1,487,633.70/2,233,783.35 = 857,777.70/x - Step 3: Cross multiply
1,487,633.70x = 2,233,783.35 × 857,777.70 - Step 4: Simplify right side
1,487,633.70x = 1,916,089,544,261.30 - Step 5: Solve for x
x = 1,916,089,544,261.30/1,487,633.70 - Step 6: Final answer
x = 1,288,011.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.