Finding the Fourth Proportional to 636,815.45, 878,783.14 and 350,332.49
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Solution
The fourth proportional to 636,815.45, 878,783.14 and 350,332.49 is: 483,446.63
Step by Step Solution
- Step 1: Write the proportion equation
636,815.45 : 878,783.14 = 350,332.49 : x - Step 2: Convert to fraction form
636,815.45/878,783.14 = 350,332.49/x - Step 3: Cross multiply
636,815.45x = 878,783.14 × 350,332.49 - Step 4: Simplify right side
636,815.45x = 307,866,285,606.22 - Step 5: Solve for x
x = 307,866,285,606.22/636,815.45 - Step 6: Final answer
x = 483,446.63
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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.