Finding the Fourth Proportional to 625,430.38, 863,186.56 and 396,008.99
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Solution
The fourth proportional to 625,430.38, 863,186.56 and 396,008.99 is: 546,551.06
Step by Step Solution
- Step 1: Write the proportion equation
625,430.38 : 863,186.56 = 396,008.99 : x - Step 2: Convert to fraction form
625,430.38/863,186.56 = 396,008.99/x - Step 3: Cross multiply
625,430.38x = 863,186.56 × 396,008.99 - Step 4: Simplify right side
625,430.38x = 341,829,637,807.17 - Step 5: Solve for x
x = 341,829,637,807.17/625,430.38 - Step 6: Final answer
x = 546,551.06
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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.