Finding the Fourth Proportional to 628,455.36, 942,830.64 and 207,731.20
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Solution
The fourth proportional to 628,455.36, 942,830.64 and 207,731.20 is: 311,645.59
Step by Step Solution
- Step 1: Write the proportion equation
628,455.36 : 942,830.64 = 207,731.20 : x - Step 2: Convert to fraction form
628,455.36/942,830.64 = 207,731.20/x - Step 3: Cross multiply
628,455.36x = 942,830.64 × 207,731.20 - Step 4: Simplify right side
628,455.36x = 195,855,340,243.97 - Step 5: Solve for x
x = 195,855,340,243.97/628,455.36 - Step 6: Final answer
x = 311,645.59
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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.