Finding the Fourth Proportional to 802,428.63, 1,106,705.80 and 705,425.09
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Solution
The fourth proportional to 802,428.63, 1,106,705.80 and 705,425.09 is: 972,918.96
Step by Step Solution
- Step 1: Write the proportion equation
802,428.63 : 1,106,705.80 = 705,425.09 : x - Step 2: Convert to fraction form
802,428.63/1,106,705.80 = 705,425.09/x - Step 3: Cross multiply
802,428.63x = 1,106,705.80 × 705,425.09 - Step 4: Simplify right side
802,428.63x = 780,698,031,271.43 - Step 5: Solve for x
x = 780,698,031,271.43/802,428.63 - Step 6: Final answer
x = 972,918.96
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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.