Finding the Fourth Proportional to 684,378.77, 944,448.77 and 378,475.70
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Solution
The fourth proportional to 684,378.77, 944,448.77 and 378,475.70 is: 522,299.82
Step by Step Solution
- Step 1: Write the proportion equation
684,378.77 : 944,448.77 = 378,475.70 : x - Step 2: Convert to fraction form
684,378.77/944,448.77 = 378,475.70/x - Step 3: Cross multiply
684,378.77x = 944,448.77 × 378,475.70 - Step 4: Simplify right side
684,378.77x = 357,450,905,563.83 - Step 5: Solve for x
x = 357,450,905,563.83/684,378.77 - Step 6: Final answer
x = 522,299.82
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1.5x scale
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.