Finding the Fourth Proportional to 636,551.70, 878,423.80 and 350,071.75
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Solution
The fourth proportional to 636,551.70, 878,423.80 and 350,071.75 is: 483,089.37
Step by Step Solution
- Step 1: Write the proportion equation
636,551.70 : 878,423.80 = 350,071.75 : x - Step 2: Convert to fraction form
636,551.70/878,423.80 = 350,071.75/x - Step 3: Cross multiply
636,551.70x = 878,423.80 × 350,071.75 - Step 4: Simplify right side
636,551.70x = 307,511,356,907.65 - Step 5: Solve for x
x = 307,511,356,907.65/636,551.70 - Step 6: Final answer
x = 483,089.37
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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.