Finding the Fourth Proportional to 571,317.81, 856,708.12 and 211,239.88
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Solution
The fourth proportional to 571,317.81, 856,708.12 and 211,239.88 is: 316,760.51
Step by Step Solution
- Step 1: Write the proportion equation
571,317.81 : 856,708.12 = 211,239.88 : x - Step 2: Convert to fraction form
571,317.81/856,708.12 = 211,239.88/x - Step 3: Cross multiply
571,317.81x = 856,708.12 × 211,239.88 - Step 4: Simplify right side
571,317.81x = 180,970,920,991.93 - Step 5: Solve for x
x = 180,970,920,991.93/571,317.81 - Step 6: Final answer
x = 316,760.51
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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.