Finding the Fourth Proportional to 657,685.92, 907,609.68 and 371,218.08
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Solution
The fourth proportional to 657,685.92, 907,609.68 and 371,218.08 is: 512,282.71
Step by Step Solution
- Step 1: Write the proportion equation
657,685.92 : 907,609.68 = 371,218.08 : x - Step 2: Convert to fraction form
657,685.92/907,609.68 = 371,218.08/x - Step 3: Cross multiply
657,685.92x = 907,609.68 × 371,218.08 - Step 4: Simplify right side
657,685.92x = 336,921,122,799.01 - Step 5: Solve for x
x = 336,921,122,799.01/657,685.92 - Step 6: Final answer
x = 512,282.71
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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.