Finding the Fourth Proportional to 1,213.71, 1,820.63 and 348
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Solution
The fourth proportional to 1,213.71, 1,820.63 and 348 is: 522.02
Step by Step Solution
- Step 1: Write the proportion equation
1,213.71 : 1,820.63 = 348 : x - Step 2: Convert to fraction form
1,213.71/1,820.63 = 348/x - Step 3: Cross multiply
1,213.71x = 1,820.63 × 348 - Step 4: Simplify right side
1,213.71x = 633,579.24 - Step 5: Solve for x
x = 633,579.24/1,213.71 - Step 6: Final answer
x = 522.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.