Finding the Fourth Proportional to 633,562.60, 874,316.34 and 378,913.78
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Solution
The fourth proportional to 633,562.60, 874,316.34 and 378,913.78 is: 522,900.99
Step by Step Solution
- Step 1: Write the proportion equation
633,562.60 : 874,316.34 = 378,913.78 : x - Step 2: Convert to fraction form
633,562.60/874,316.34 = 378,913.78/x - Step 3: Cross multiply
633,562.60x = 874,316.34 × 378,913.78 - Step 4: Simplify right side
633,562.60x = 331,290,509,305.17 - Step 5: Solve for x
x = 331,290,509,305.17/633,562.60 - Step 6: Final answer
x = 522,900.99
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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.