Finding the Fourth Proportional to 874,140.17, 1,206,350.64 and 486,955.12
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Solution
The fourth proportional to 874,140.17, 1,206,350.64 and 486,955.12 is: 672,018.79
Step by Step Solution
- Step 1: Write the proportion equation
874,140.17 : 1,206,350.64 = 486,955.12 : x - Step 2: Convert to fraction form
874,140.17/1,206,350.64 = 486,955.12/x - Step 3: Cross multiply
874,140.17x = 1,206,350.64 × 486,955.12 - Step 4: Simplify right side
874,140.17x = 587,438,620,663.28 - Step 5: Solve for x
x = 587,438,620,663.28/874,140.17 - Step 6: Final answer
x = 672,018.79
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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.