Finding the Fourth Proportional to 1,000,357.74, 1,380,116.82 and 656,383.53
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Solution
The fourth proportional to 1,000,357.74, 1,380,116.82 and 656,383.53 is: 905,561.99
Step by Step Solution
- Step 1: Write the proportion equation
1,000,357.74 : 1,380,116.82 = 656,383.53 : x - Step 2: Convert to fraction form
1,000,357.74/1,380,116.82 = 656,383.53/x - Step 3: Cross multiply
1,000,357.74x = 1,380,116.82 × 656,383.53 - Step 4: Simplify right side
1,000,357.74x = 905,885,950,123.98 - Step 5: Solve for x
x = 905,885,950,123.98/1,000,357.74 - Step 6: Final answer
x = 905,561.99
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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.