Finding the Fourth Proportional to 765,695.04, 1,148,542.70 and 315,921.75
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Solution
The fourth proportional to 765,695.04, 1,148,542.70 and 315,921.75 is: 473,882.68
Step by Step Solution
- Step 1: Write the proportion equation
765,695.04 : 1,148,542.70 = 315,921.75 : x - Step 2: Convert to fraction form
765,695.04/1,148,542.70 = 315,921.75/x - Step 3: Cross multiply
765,695.04x = 1,148,542.70 × 315,921.75 - Step 4: Simplify right side
765,695.04x = 362,849,619,733.73 - Step 5: Solve for x
x = 362,849,619,733.73/765,695.04 - Step 6: Final answer
x = 473,882.68
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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.