Finding the Fourth Proportional to 557,991.46, 770,088.42 and 316,248.09
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Solution
The fourth proportional to 557,991.46, 770,088.42 and 316,248.09 is: 436,456.49
Step by Step Solution
- Step 1: Write the proportion equation
557,991.46 : 770,088.42 = 316,248.09 : x - Step 2: Convert to fraction form
557,991.46/770,088.42 = 316,248.09/x - Step 3: Cross multiply
557,991.46x = 770,088.42 × 316,248.09 - Step 4: Simplify right side
557,991.46x = 243,538,991,956.12 - Step 5: Solve for x
x = 243,538,991,956.12/557,991.46 - Step 6: Final answer
x = 436,456.49
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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.