Finding the Fourth Proportional to 450,990.90, 622,377.49 and 257,394.75
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Solution
The fourth proportional to 450,990.90, 622,377.49 and 257,394.75 is: 355,210.49
Step by Step Solution
- Step 1: Write the proportion equation
450,990.90 : 622,377.49 = 257,394.75 : x - Step 2: Convert to fraction form
450,990.90/622,377.49 = 257,394.75/x - Step 3: Cross multiply
450,990.90x = 622,377.49 × 257,394.75 - Step 4: Simplify right side
450,990.90x = 160,196,697,489.16 - Step 5: Solve for x
x = 160,196,697,489.16/450,990.90 - Step 6: Final answer
x = 355,210.49
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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.