Finding the Fourth Proportional to 615,700.12, 849,657.84 and 343,772.20
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Solution
The fourth proportional to 615,700.12, 849,657.84 and 343,772.20 is: 474,400.99
Step by Step Solution
- Step 1: Write the proportion equation
615,700.12 : 849,657.84 = 343,772.20 : x - Step 2: Convert to fraction form
615,700.12/849,657.84 = 343,772.20/x - Step 3: Cross multiply
615,700.12x = 849,657.84 × 343,772.20 - Step 4: Simplify right side
615,700.12x = 292,088,744,904.05 - Step 5: Solve for x
x = 292,088,744,904.05/615,700.12 - Step 6: Final answer
x = 474,400.99
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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.