Finding the Fourth Proportional to 552,987.63, 763,247.34 and 361,890.27
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Solution
The fourth proportional to 552,987.63, 763,247.34 and 361,890.27 is: 499,489.99
Step by Step Solution
- Step 1: Write the proportion equation
552,987.63 : 763,247.34 = 361,890.27 : x - Step 2: Convert to fraction form
552,987.63/763,247.34 = 361,890.27/x - Step 3: Cross multiply
552,987.63x = 763,247.34 × 361,890.27 - Step 4: Simplify right side
552,987.63x = 276,211,785,949.38 - Step 5: Solve for x
x = 276,211,785,949.38/552,987.63 - Step 6: Final answer
x = 499,489.99
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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.