Finding the Fourth Proportional to 418,395.79, 577,386.93 and 227,408.68
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Solution
The fourth proportional to 418,395.79, 577,386.93 and 227,408.68 is: 313,824.38
Step by Step Solution
- Step 1: Write the proportion equation
418,395.79 : 577,386.93 = 227,408.68 : x - Step 2: Convert to fraction form
418,395.79/577,386.93 = 227,408.68/x - Step 3: Cross multiply
418,395.79x = 577,386.93 × 227,408.68 - Step 4: Simplify right side
418,395.79x = 131,302,799,600.55 - Step 5: Solve for x
x = 131,302,799,600.55/418,395.79 - Step 6: Final answer
x = 313,824.38
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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.