Finding the Fourth Proportional to 498,620.19, 688,150.04 and 307,628.67
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Solution
The fourth proportional to 498,620.19, 688,150.04 and 307,628.67 is: 424,560.99
Step by Step Solution
- Step 1: Write the proportion equation
498,620.19 : 688,150.04 = 307,628.67 : x - Step 2: Convert to fraction form
498,620.19/688,150.04 = 307,628.67/x - Step 3: Cross multiply
498,620.19x = 688,150.04 × 307,628.67 - Step 4: Simplify right side
498,620.19x = 211,694,680,027.50 - Step 5: Solve for x
x = 211,694,680,027.50/498,620.19 - Step 6: Final answer
x = 424,560.99
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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.