Finding the Fourth Proportional to 612,734.29, 845,228.19 and 367,655.70
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Solution
The fourth proportional to 612,734.29, 845,228.19 and 367,655.70 is: 507,157.78
Step by Step Solution
- Step 1: Write the proportion equation
612,734.29 : 845,228.19 = 367,655.70 : x - Step 2: Convert to fraction form
612,734.29/845,228.19 = 367,655.70/x - Step 3: Cross multiply
612,734.29x = 845,228.19 × 367,655.70 - Step 4: Simplify right side
612,734.29x = 310,752,961,854.18 - Step 5: Solve for x
x = 310,752,961,854.18/612,734.29 - Step 6: Final answer
x = 507,157.78
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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.