Finding the Fourth Proportional to 418,573.55, 577,615.58 and 227,587.09
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Solution
The fourth proportional to 418,573.55, 577,615.58 and 227,587.09 is: 314,061.53
Step by Step Solution
- Step 1: Write the proportion equation
418,573.55 : 577,615.58 = 227,587.09 : x - Step 2: Convert to fraction form
418,573.55/577,615.58 = 227,587.09/x - Step 3: Cross multiply
418,573.55x = 577,615.58 × 227,587.09 - Step 4: Simplify right side
418,573.55x = 131,457,848,990.86 - Step 5: Solve for x
x = 131,457,848,990.86/418,573.55 - Step 6: Final answer
x = 314,061.53
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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.