Finding the Fourth Proportional to 636,690.21, 954,931.47 and 187,305.99
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Solution
The fourth proportional to 636,690.21, 954,931.47 and 187,305.99 is: 280,928.44
Step by Step Solution
- Step 1: Write the proportion equation
636,690.21 : 954,931.47 = 187,305.99 : x - Step 2: Convert to fraction form
636,690.21/954,931.47 = 187,305.99/x - Step 3: Cross multiply
636,690.21x = 954,931.47 × 187,305.99 - Step 4: Simplify right side
636,690.21x = 178,864,384,370.51 - Step 5: Solve for x
x = 178,864,384,370.51/636,690.21 - Step 6: Final answer
x = 280,928.44
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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.