Finding the Fourth Proportional to 659,887.21, 910,432.61 and 369,455.99
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Solution
The fourth proportional to 659,887.21, 910,432.61 and 369,455.99 is: 509,730.71
Step by Step Solution
- Step 1: Write the proportion equation
659,887.21 : 910,432.61 = 369,455.99 : x - Step 2: Convert to fraction form
659,887.21/910,432.61 = 369,455.99/x - Step 3: Cross multiply
659,887.21x = 910,432.61 × 369,455.99 - Step 4: Simplify right side
659,887.21x = 336,364,776,241.85 - Step 5: Solve for x
x = 336,364,776,241.85/659,887.21 - Step 6: Final answer
x = 509,730.71
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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.