Finding the Fourth Proportional to 615,748.05, 849,746.73 and 343,806.75
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Solution
The fourth proportional to 615,748.05, 849,746.73 and 343,806.75 is: 474,461.37
Step by Step Solution
- Step 1: Write the proportion equation
615,748.05 : 849,746.73 = 343,806.75 : x - Step 2: Convert to fraction form
615,748.05/849,746.73 = 343,806.75/x - Step 3: Cross multiply
615,748.05x = 849,746.73 × 343,806.75 - Step 4: Simplify right side
615,748.05x = 292,148,661,564.43 - Step 5: Solve for x
x = 292,148,661,564.43/615,748.05 - Step 6: Final answer
x = 474,461.37
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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.