Finding the Fourth Proportional to 419,628.14, 579,070.58 and 228,642.96
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Solution
The fourth proportional to 419,628.14, 579,070.58 and 228,642.96 is: 315,518.43
Step by Step Solution
- Step 1: Write the proportion equation
419,628.14 : 579,070.58 = 228,642.96 : x - Step 2: Convert to fraction form
419,628.14/579,070.58 = 228,642.96/x - Step 3: Cross multiply
419,628.14x = 579,070.58 × 228,642.96 - Step 4: Simplify right side
419,628.14x = 132,400,411,460.12 - Step 5: Solve for x
x = 132,400,411,460.12/419,628.14 - Step 6: Final answer
x = 315,518.43
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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.