Finding the Fourth Proportional to 518,811.09, 776,620.50 and 338,508.28
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Solution
The fourth proportional to 518,811.09, 776,620.50 and 338,508.28 is: 506,720.99
Step by Step Solution
- Step 1: Write the proportion equation
518,811.09 : 776,620.50 = 338,508.28 : x - Step 2: Convert to fraction form
518,811.09/776,620.50 = 338,508.28/x - Step 3: Cross multiply
518,811.09x = 776,620.50 × 338,508.28 - Step 4: Simplify right side
518,811.09x = 262,892,467,726.19 - Step 5: Solve for x
x = 262,892,467,726.19/518,811.09 - Step 6: Final answer
x = 506,720.99
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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.