Finding the Fourth Proportional to 4,478,433.30, 6,717,649.95 and 2,238,945.30
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Solution
The fourth proportional to 4,478,433.30, 6,717,649.95 and 2,238,945.30 is: 3,358,417.95
Step by Step Solution
- Step 1: Write the proportion equation
4,478,433.30 : 6,717,649.95 = 2,238,945.30 : x - Step 2: Convert to fraction form
4,478,433.30/6,717,649.95 = 2,238,945.30/x - Step 3: Cross multiply
4,478,433.30x = 6,717,649.95 × 2,238,945.30 - Step 4: Simplify right side
4,478,433.30x = 15,040,450,782,597.73 - Step 5: Solve for x
x = 15,040,450,782,597.73/4,478,433.30 - Step 6: Final answer
x = 3,358,417.95
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.