Finding the Fourth Proportional to 492,440.01, 679,883.49 and 308,930.18
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Solution
The fourth proportional to 492,440.01, 679,883.49 and 308,930.18 is: 426,522.06
Step by Step Solution
- Step 1: Write the proportion equation
492,440.01 : 679,883.49 = 308,930.18 : x - Step 2: Convert to fraction form
492,440.01/679,883.49 = 308,930.18/x - Step 3: Cross multiply
492,440.01x = 679,883.49 × 308,930.18 - Step 4: Simplify right side
492,440.01x = 210,036,525,545.31 - Step 5: Solve for x
x = 210,036,525,545.31/492,440.01 - Step 6: Final answer
x = 426,522.06
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1.5x scale
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.