Finding the Fourth Proportional to 559,347.12, 771,879.78 and 317,625.30
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Solution
The fourth proportional to 559,347.12, 771,879.78 and 317,625.30 is: 438,311.99
Step by Step Solution
- Step 1: Write the proportion equation
559,347.12 : 771,879.78 = 317,625.30 : x - Step 2: Convert to fraction form
559,347.12/771,879.78 = 317,625.30/x - Step 3: Cross multiply
559,347.12x = 771,879.78 × 317,625.30 - Step 4: Simplify right side
559,347.12x = 245,168,546,686.43 - Step 5: Solve for x
x = 245,168,546,686.43/559,347.12 - Step 6: Final answer
x = 438,311.99
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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.