Finding the Fourth Proportional to 700,680.02, 966,938.42 and 378,390.09
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Solution
The fourth proportional to 700,680.02, 966,938.42 and 378,390.09 is: 522,178.32
Step by Step Solution
- Step 1: Write the proportion equation
700,680.02 : 966,938.42 = 378,390.09 : x - Step 2: Convert to fraction form
700,680.02/966,938.42 = 378,390.09/x - Step 3: Cross multiply
700,680.02x = 966,938.42 × 378,390.09 - Step 4: Simplify right side
700,680.02x = 365,879,913,876.31 - Step 5: Solve for x
x = 365,879,913,876.31/700,680.02 - Step 6: Final answer
x = 522,178.32
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1.5x scale
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.