Finding the Fourth Proportional to 419,729.76, 579,210.24 and 228,739.08
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Solution
The fourth proportional to 419,729.76, 579,210.24 and 228,739.08 is: 315,650.76
Step by Step Solution
- Step 1: Write the proportion equation
419,729.76 : 579,210.24 = 228,739.08 : x - Step 2: Convert to fraction form
419,729.76/579,210.24 = 228,739.08/x - Step 3: Cross multiply
419,729.76x = 579,210.24 × 228,739.08 - Step 4: Simplify right side
419,729.76x = 132,488,017,424.18 - Step 5: Solve for x
x = 132,488,017,424.18/419,729.76 - Step 6: Final answer
x = 315,650.76
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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.