Finding the Fourth Proportional to 1,133,728.68, 1,564,473.69 and 624,431.01
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Solution
The fourth proportional to 1,133,728.68, 1,564,473.69 and 624,431.01 is: 861,675.20
Step by Step Solution
- Step 1: Write the proportion equation
1,133,728.68 : 1,564,473.69 = 624,431.01 : x - Step 2: Convert to fraction form
1,133,728.68/1,564,473.69 = 624,431.01/x - Step 3: Cross multiply
1,133,728.68x = 1,564,473.69 × 624,431.01 - Step 4: Simplify right side
1,133,728.68x = 976,905,886,365.13 - Step 5: Solve for x
x = 976,905,886,365.13/1,133,728.68 - Step 6: Final answer
x = 861,675.20
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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.