Finding the Fourth Proportional to 615,721.16, 849,687.08 and 343,793.68
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Solution
The fourth proportional to 615,721.16, 849,687.08 and 343,793.68 is: 474,430.74
Step by Step Solution
- Step 1: Write the proportion equation
615,721.16 : 849,687.08 = 343,793.68 : x - Step 2: Convert to fraction form
615,721.16/849,687.08 = 343,793.68/x - Step 3: Cross multiply
615,721.16x = 849,687.08 × 343,793.68 - Step 4: Simplify right side
615,721.16x = 292,117,048,081.65 - Step 5: Solve for x
x = 292,117,048,081.65/615,721.16 - Step 6: Final answer
x = 474,430.74
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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.