Finding the Fourth Proportional to 916,037.10, 1,264,138.79 and 508,165.65
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Solution
The fourth proportional to 916,037.10, 1,264,138.79 and 508,165.65 is: 701,272.81
Step by Step Solution
- Step 1: Write the proportion equation
916,037.10 : 1,264,138.79 = 508,165.65 : x - Step 2: Convert to fraction form
916,037.10/1,264,138.79 = 508,165.65/x - Step 3: Cross multiply
916,037.10x = 1,264,138.79 × 508,165.65 - Step 4: Simplify right side
916,037.10x = 642,391,907,369.74 - Step 5: Solve for x
x = 642,391,907,369.74/916,037.10 - Step 6: Final answer
x = 701,272.81
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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.