Finding the Fourth Proportional to 888,431.70, 1,226,064.73 and 486,023.70
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Solution
The fourth proportional to 888,431.70, 1,226,064.73 and 486,023.70 is: 670,728.56
Step by Step Solution
- Step 1: Write the proportion equation
888,431.70 : 1,226,064.73 = 486,023.70 : x - Step 2: Convert to fraction form
888,431.70/1,226,064.73 = 486,023.70/x - Step 3: Cross multiply
888,431.70x = 1,226,064.73 × 486,023.70 - Step 4: Simplify right side
888,431.70x = 595,896,516,514.10 - Step 5: Solve for x
x = 595,896,516,514.10/888,431.70 - Step 6: Final answer
x = 670,728.56
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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.