Finding the Fourth Proportional to 859,944.80, 1,288,143.30 and 503,879.60
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Solution
The fourth proportional to 859,944.80, 1,288,143.30 and 503,879.60 is: 754,779.99
Step by Step Solution
- Step 1: Write the proportion equation
859,944.80 : 1,288,143.30 = 503,879.60 : x - Step 2: Convert to fraction form
859,944.80/1,288,143.30 = 503,879.60/x - Step 3: Cross multiply
859,944.80x = 1,288,143.30 × 503,879.60 - Step 4: Simplify right side
859,944.80x = 649,069,130,746.68 - Step 5: Solve for x
x = 649,069,130,746.68/859,944.80 - Step 6: Final answer
x = 754,779.99
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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.