Finding the Fourth Proportional to 948,979.05, 1,423,485.06 and 349,631.70
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Solution
The fourth proportional to 948,979.05, 1,423,485.06 and 349,631.70 is: 524,453.62
Step by Step Solution
- Step 1: Write the proportion equation
948,979.05 : 1,423,485.06 = 349,631.70 : x - Step 2: Convert to fraction form
948,979.05/1,423,485.06 = 349,631.70/x - Step 3: Cross multiply
948,979.05x = 1,423,485.06 × 349,631.70 - Step 4: Simplify right side
948,979.05x = 497,695,501,452.40 - Step 5: Solve for x
x = 497,695,501,452.40/948,979.05 - Step 6: Final answer
x = 524,453.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.