Finding the Fourth Proportional to 858,779.70, 1,288,169.55 and 703,259.70
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Solution
The fourth proportional to 858,779.70, 1,288,169.55 and 703,259.70 is: 1,054,889.55
Step by Step Solution
- Step 1: Write the proportion equation
858,779.70 : 1,288,169.55 = 703,259.70 : x - Step 2: Convert to fraction form
858,779.70/1,288,169.55 = 703,259.70/x - Step 3: Cross multiply
858,779.70x = 1,288,169.55 × 703,259.70 - Step 4: Simplify right side
858,779.70x = 905,917,731,282.14 - Step 5: Solve for x
x = 905,917,731,282.14/858,779.70 - Step 6: Final answer
x = 1,054,889.55
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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.