Finding the Fourth Proportional to 558,056.64, 770,102.08 and 316,361.60
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Solution
The fourth proportional to 558,056.64, 770,102.08 and 316,361.60 is: 436,569.89
Step by Step Solution
- Step 1: Write the proportion equation
558,056.64 : 770,102.08 = 316,361.60 : x - Step 2: Convert to fraction form
558,056.64/770,102.08 = 316,361.60/x - Step 3: Cross multiply
558,056.64x = 770,102.08 × 316,361.60 - Step 4: Simplify right side
558,056.64x = 243,630,726,192.13 - Step 5: Solve for x
x = 243,630,726,192.13/558,056.64 - Step 6: Final answer
x = 436,569.89
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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.