Finding the Fourth Proportional to 1,011,399.26, 1,395,773.55 and 581,679.87
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Solution
The fourth proportional to 1,011,399.26, 1,395,773.55 and 581,679.87 is: 802,742.71
Step by Step Solution
- Step 1: Write the proportion equation
1,011,399.26 : 1,395,773.55 = 581,679.87 : x - Step 2: Convert to fraction form
1,011,399.26/1,395,773.55 = 581,679.87/x - Step 3: Cross multiply
1,011,399.26x = 1,395,773.55 × 581,679.87 - Step 4: Simplify right side
1,011,399.26x = 811,893,377,113.44 - Step 5: Solve for x
x = 811,893,377,113.44/1,011,399.26 - Step 6: Final answer
x = 802,742.71
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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.